# Can't play One Shot: "ErrorLookup failed for EventModel: {00000000-0000-0000-0000-000000000000}"

**URL:** <https://qa.fmod.com/t/cant-play-one-shot-errorlookup-failed-for-eventmodel-00000000-0000-0000-0000-000000000000/21598>\
**Category:** Unity\
**Tags:** csharp\
**Created:** [May 8, 2024, 5:34pm UTC](https://qa.fmod.com/t/cant-play-one-shot-errorlookup-failed-for-eventmodel-00000000-0000-0000-0000-000000000000/21598 "2024-05-08T17:34:13Z")\
**Posts on this page:** 14\
**Page:** 1

<div class="post-metadata">

**Author:** ![DanielClifton](https://avatars.discourse-cdn.com/v4/letter/d/13edae/32.png) [@DanielClifton](https://qa.fmod.com/u/DanielClifton)\
**Post date:** [May 8, 2024, 5:34pm UTC](https://qa.fmod.com/t/cant-play-one-shot-errorlookup-failed-for-eventmodel-00000000-0000-0000-0000-000000000000/21598/1 "2024-05-08T17:34:13Z")

</div>

Hi, first post here. Sorry if I’m doing it wrong 🙂

I’m trying to integrate Fmod in a unity project. The Unity version is 2022.3.2f1 and the Fmod version is 2.02.21.

If I want to play a oneshot I can do so by calling the path directly with a string as such:

`FMODUnity.RuntimeManager.PlayOneShot("event:/Cheese/Pickup_Cheese");`

However, if I first declare an eventReference variable and try to reference it in PlayOneShot function as below, it doesn’t play any sound and I get a warning in the unity console.

This is what I wan’t to do (let’s say I want to play the sound on start):

```auto
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using FMODUnity;

public class PickupToCargo : MonoBehaviour, ISpawnable
{
    public CargoContent cargoContent;
    public float amount = 0.2f;
    CargoHold targetContainer;
    public float timeToPickup = 0.5f;
    UICountdown currentCounter;
    public delegate void OnPickup();
    public OnPickup onPickup;
    public bool spawnRandomRotation = true;
    public bool shouldDespawn;
    
    // Audio
    [SerializeField] private EventReference cheeseCollectedSound;
    

    private void Start()
    {
            FMODUnity.RuntimeManager.PlayOneShot(cheeseCollectedSound);
    }

}

```

Instead of playing a sound, I get the following errors in console:

“[FMOD] ObjectLookup::get : Lookup failed for EventModel: {00000000-0000-0000-0000-000000000000}”

and

“[FMOD] Event not found: {00000000-0000-0000-0000-000000000000} ()  
UnityEngine.Debug:LogWarning (object)”

Do you have any idea what is wrong, or what I am doing wrong?

---

<div class="post-metadata">

**Author:** ![Connor\_FMOD](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/connor_fmod/32/3685_2.png) [@Connor\_FMOD](https://qa.fmod.com/u/Connor_FMOD)\
**Post date:** [May 9, 2024, 12:10am UTC](https://qa.fmod.com/t/cant-play-one-shot-errorlookup-failed-for-eventmodel-00000000-0000-0000-0000-000000000000/21598/2 "2024-05-09T00:10:39Z")

</div>

Hi,  
What version of the FMOD integration are you using?

Based on the error messages, the issue could be caused by the event reference settings in the inspector.  
Could I please get a screenshot of your Unity project’s `Event Reference`? The ‘Cheese Collected Sound’ reference can be set either by typing in the event’s path or by using the magnifying glass.  
 ![image](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/c/c3939a2fbd13fe4d65790d60f9834a8b9d1eb940.png)

Hope this helps!

---

<div class="post-metadata">

**Author:** ![DanielClifton](https://avatars.discourse-cdn.com/v4/letter/d/13edae/32.png) [@DanielClifton](https://qa.fmod.com/u/DanielClifton)\
**Post date:** [May 9, 2024, 11:20am UTC](https://qa.fmod.com/t/cant-play-one-shot-errorlookup-failed-for-eventmodel-00000000-0000-0000-0000-000000000000/21598/3 "2024-05-09T11:20:08Z")

</div>

Good news! I loaded another scene, and then it started working. Now it also works in the original scene.

Just to answer your questions however:

I had already chosen the event in the inspector. Even though I could see the event in the inspector, it still gave me the message that the event wasn’t found.

 ![Skærmbillede 2024-05-09 kl. 13.16.57](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/5/5e2f6418875fc63257e215819bb3346a086651c1.png)

I thought the versions of FMOD Studio and FMOD for Unity were the exact same. Now that I double check, I can see that I am using FMOD Studio version 2.02.22 and FMOD for Unity version 2.02.21. I didn’t notice because it showed 2.02 and 2.02 in the highlights on the download page.

I don’t know if that could be an issue further down the line, or if it isn’t a problem. For the moment it seems to be working as intended. Would you suggest I change one?

Thanks for the help!

---

<div class="post-metadata">

**Author:** ![Connor\_FMOD](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/connor_fmod/32/3685_2.png) [@Connor\_FMOD](https://qa.fmod.com/u/Connor_FMOD)\
**Post date:** [May 10, 2024, 7:22am UTC](https://qa.fmod.com/t/cant-play-one-shot-errorlookup-failed-for-eventmodel-00000000-0000-0000-0000-000000000000/21598/4 "2024-05-10T07:22:29Z")

</div>

Good to hear it is solved, and thank you for sharing the solution!

Different minor versions are fine, e.g. `2.02.XX`, as these mainly contain bug fixes and smaller workflow improvements. You can read more about the versioning here: [FMOD Studio | Glossary - Version](https://fmod.com/docs/2.02/studio/glossary.html#version)

Changing versions close to release, either minor or major, is not recommended.

---

<div class="post-metadata">

**Author:** ![DanielClifton](https://avatars.discourse-cdn.com/v4/letter/d/13edae/32.png) [@DanielClifton](https://qa.fmod.com/u/DanielClifton)\
**Post date:** [May 13, 2024, 1:35pm UTC](https://qa.fmod.com/t/cant-play-one-shot-errorlookup-failed-for-eventmodel-00000000-0000-0000-0000-000000000000/21598/5 "2024-05-13T13:35:42Z")

</div>

Actually, i still get a similar warning when I store the event using FMODUnity.EventReference and try to use it when creating a new instance of an event. The sound does play, but for some reason i get the following errors:

> FMOD] ObjectLookup::get : Lookup failed for EventModel: {00000000-0000-0000-0000-000000000000}  
> UnityEngine.Debug:LogWarning (object)  
> FMODUnity.RuntimeUtils:DebugLogWarning (string) (at Assets/Plugins/FMOD/src/RuntimeUtils.cs:564)  
> FMODUnity.RuntimeManager:DEBUG\_CALLBACK (FMOD.DEBUG\_FLAGS,intptr,int,intptr,intptr) (at Assets/Plugins/FMOD/src/RuntimeManager.cs:108)  
> FMOD.Studio.System:getEventByID (FMOD.GUID,FMOD.Studio.EventDescription&) (at Assets/Plugins/FMOD/src/fmod\_studio.cs:464)  
> FMODUnity.RuntimeManager:GetEventDescription (FMOD.GUID) (at Assets/Plugins/FMOD/src/RuntimeManager.cs:1309)  
> FMODUnity.RuntimeManager:CreateInstance (FMOD.GUID) (at Assets/Plugins/FMOD/src/RuntimeManager.cs:1188)  
> FMODUnity.RuntimeManager:CreateInstance (FMODUnity.EventReference) (at Assets/Plugins/FMOD/src/RuntimeManager.cs:1165)  
> AnimationController:Start () (at Assets/Scripts/GUI/AnimationController.cs:21)

and

> EventNotFoundException: [FMOD] Event not found: {00000000-0000-0000-0000-000000000000} ()  
> FMODUnity.RuntimeManager.CreateInstance (FMODUnity.EventReference eventReference) (at Assets/Plugins/FMOD/src/RuntimeManager.cs:1169)  
> AnimationController.Start () (at Assets/Scripts/GUI/AnimationController.cs:21)

 ![Skærmbillede 2024-05-13 kl. 15.31.01](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/a/af8711bdcd28078af6f84da1fd37608f5c3e68ab.png)

This is the code i’m using:

```auto
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using FMODUnity;
using FMOD.Studio;

public class AnimationController : MonoBehaviour
{
    public Animator animator;
    float targetRotation = 0;
    float rollSpeed = 3;
    public ParticleSystem engine;

    //Audio
    [SerializeField] private FMODUnity.EventReference thrustSoundEvent;
    private FMOD.Studio.EventInstance thrustSoundInstance;

    
     private void Start()
    {
        thrustSoundInstance = FMODUnity.RuntimeManager.CreateInstance(thrustSoundEvent);
    }

public void SetEngine(bool on)
    {
        if (engineOn != on)
        {
            if (on)
            { 
                OnEngineStart();
            }
            else OnEngineCutoff();
        }
        engineOn = on;
        animator.SetBool("Thrust", on);
   {

 void OnEngineStart()
    {
        thrustSoundInstance.start();
    {

    }
    void OnEngineCutoff()
    {
        thrustSoundInstance.stop(FMOD.Studio.STOP_MODE.ALLOWFADEOUT);
    {

```

I don’t get the message however, use reference the path directly with a string, as such:

thrustSoundInstance = FMODUnity.RuntimeManager.CreateInstance(event:/PlayerSounds/Player\_Rocket\_Engine);

What could be the cause of this? It seems to have some thing to do with FMODUnity.EventReference.

Any help would be greatly appreciated!

---

<div class="post-metadata">

**Author:** ![li\_fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/li_fmod/32/6577_2.png) [@li\_fmod](https://qa.fmod.com/u/li_fmod)\
**Post date:** [May 16, 2024, 1:04am UTC](https://qa.fmod.com/t/cant-play-one-shot-errorlookup-failed-for-eventmodel-00000000-0000-0000-0000-000000000000/21598/6 "2024-05-16T01:04:54Z")

</div>

HI, Thanks for providing the code! Since Connor is away, I will be continuing the investigation.

Unfortunately, I was not able to reproduce the issue with the code you provided.  
Could you please provide a Unity log where you run into the issue with your FMOD Logging Level set to “Log” [Unity Integration | 8. Settings | 8.2 Initialization | 8.2.1 Logging Level](https://fmod.com/docs/2.02/unity/settings.html#logging-level)

---

<div class="post-metadata">

**Author:** ![shertigan](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/shertigan/32/8170_2.png) [@shertigan](https://qa.fmod.com/u/shertigan)\
**Post date:** [June 2, 2026, 8:47am UTC](https://qa.fmod.com/t/cant-play-one-shot-errorlookup-failed-for-eventmodel-00000000-0000-0000-0000-000000000000/21598/7 "2026-06-02T08:47:39Z")

</div>

Hi,

I came across the same issue today, and as DanielClifton suggested, this seems to have something to do with FMODUnity.EventReference and the way it is serialized in the UnityEditor.

**At first my code was looking like this :**

`[SerializeField] private EventReference mySound;`  
`RuntimeManager.PlayOneShot(mySound);`

in the editor, there was some problem when setting the event’s path :  
I could search and select the event to reference (with the magnifying glass icon) but when clicking it, no path got written in the editor field. I worked around this by selecting the event through the “folder” icon and dragging it in the field (manually typing the event path works too), but then got the errors mentioned in the first post when testing in game.

**What seemed to fix the issue :**

Simply changing the EventReference from `private` to `public` seemed to work :

`public EventReference mySound;`  
`RuntimeManager.PlayOneShot(mySound);`

From there, referencing the event with the magnifying glass icon worked properly and everything worked fine in game. Afterwards, I could even change the reference back to `private` and it still worked.

So yeah, this seems to be a problem with the way FMODUnity serializes EventReference when they are privates. However, I tried to methodically reproduce this bug after writing this post and couldn’t properly do it… maybe other factors are coming into account for the issue, but I don’t know which ones.

---

<div class="post-metadata">

**Author:** ![li\_fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/li_fmod/32/6577_2.png) [@li\_fmod](https://qa.fmod.com/u/li_fmod)\
**Post date:** [June 4, 2026, 11:36pm UTC](https://qa.fmod.com/t/cant-play-one-shot-errorlookup-failed-for-eventmodel-00000000-0000-0000-0000-000000000000/21598/8 "2026-06-04T23:36:53Z")

</div>

Hi,

Thank you for sharing your workaround and the additional information!

I have not been able to reproduce this on my end either.

In principle, `[SerializeField] private EventReference` should be valid, so changing it to public should not normally be required. The fact that this caused the picker to start writing the reference correctly makes this look like an editor/serialized-state issue.

If you manage to reproduce it consistently, could you please share your Unity version, FMOD Unity integration version?

---

<div class="post-metadata">

**Author:** ![shertigan](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/shertigan/32/8170_2.png) [@shertigan](https://qa.fmod.com/u/shertigan)\
**Post date:** [June 11, 2026, 9:55am UTC](https://qa.fmod.com/t/cant-play-one-shot-errorlookup-failed-for-eventmodel-00000000-0000-0000-0000-000000000000/21598/9 "2026-06-11T09:55:36Z")

</div>

So the issue came back today!  
This time my EventReference was `public`, and changing it to `[SerializeField] private` (or the opposite, `private` to `public`) didn’t help.

The precise steps to reproduce are still unclear though… not shure if that is relevant, but I was trying to serialize an event in a ScriptableObject. When trying to reproduce the issue on a classic MonoBehaviour script, the serialization seemed to work just fine.

My Unity version is 6000.3.8f1, and my FMOD integration version is 2.03.13

---

<div class="post-metadata">

**Author:** ![li\_fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/li_fmod/32/6577_2.png) [@li\_fmod](https://qa.fmod.com/u/li_fmod)\
**Post date:** [June 15, 2026, 3:06am UTC](https://qa.fmod.com/t/cant-play-one-shot-errorlookup-failed-for-eventmodel-00000000-0000-0000-0000-000000000000/21598/10 "2026-06-15T03:06:36Z")

</div>

Thank you for the additional information.

I have tested this using Unity 6000.3.8f1 and FMOD Unity integration 2.03.13 with an EventReference serialized in a ScriptableObject, but I have not been able to reproduce the issue so far.

Could you please share the ScriptableObject class containing the EventReference field? It would also be useful to know whether you are using Unity’s default Inspector or any custom editor/property drawer.

As a quick check, when the issue occurs, does selecting **FMOD \> Refresh Banks** in Unity make any difference?

---

<div class="post-metadata">

**Author:** ![shertigan](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/shertigan/32/8170_2.png) [@shertigan](https://qa.fmod.com/u/shertigan)\
**Post date:** [June 22, 2026, 12:26pm UTC](https://qa.fmod.com/t/cant-play-one-shot-errorlookup-failed-for-eventmodel-00000000-0000-0000-0000-000000000000/21598/11 "2026-06-22T12:26:49Z")

</div>

The problem persists even after selecting **FMOD \> Refresh Banks**.

To answer your questions, we’re using the plugin [Odin Inspector](https://odininspector.com/) which might be a part of the issue. The variables are contained in a serialized interface instance handled by Odin Inspector. This interface instance is itself stored inside a `SerializedScriptableObject` (Odin’s extension of Unity’s standard `ScriptableObject`).  
A minimal version of our code looks like this :

```auto
public class MiniGameData : SerializedScriptableObject
 {
     public LocalizedString Name;
 
     public EventReference MusicalTheme; //This field is working properly
 
     public IMiniGameSettings Settings;
 }
 
 public class MiniGameASettings : IMiniGameSettings
 {
     public EventReference correctAnswerSFX;
     public EventReference wrongAnswerSFX;
     // These two SFX fields cannot be changed in the Inspector.
     // The FMOD event selection window opens correctly, but after selecting an event, the field value does not update.
 }

```

Aditionnaly, I got some precious help from a programmer in my team who reported the following :

> I did some debugging on my side and found that `SetEvent()` in `EventRefDrawer.cs` is being called correctly.  
> Specifically, the following method is executed when I select an FMOD event:
> 
> ```auto
> private static void SetEvent(SerializedProperty property, string path)
> 
> ```
> 
> The `SerializedProperty` is found correctly, and the selected event’s GUID is properly assigned to it. I verified this in the debugger, and the GUID value is indeed present in the property immediately after the selection.  
> However, at some point afterward, when the value is read again to draw the field in the Inspector, it has been reset to `null`/empty. I followed the execution flow as far as I could with Visual Studio and couldn’t find anything suspicious after the event selection. As far as I can tell, the GUID is successfully written to the `SerializedProperty`, but the value does not persist and is lost before the field is rendered again.

Hope these elements help identify the issue 🙏

---

<div class="post-metadata">

**Author:** ![li\_fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/li_fmod/32/6577_2.png) [@li\_fmod](https://qa.fmod.com/u/li_fmod)\
**Post date:** [June 23, 2026, 5:21am UTC](https://qa.fmod.com/t/cant-play-one-shot-errorlookup-failed-for-eventmodel-00000000-0000-0000-0000-000000000000/21598/12 "2026-06-23T05:21:32Z")

</div>

Thank you again for the detailed reproduction information.

I have been able to reproduce the issue and confirmed that it occurs when the `EventReference` is nested inside an interface value serialized by Odin. The equivalent setup using Unity’s native `SerializeReference` works correctly.

Since Odin is responsible for serializing the interface value in this setup, could you please also raise this with Odin support? They may be able to clarify why the value written through Unity’s `SerializedProperty` is not retained when the Odin-managed property is redrawn.

Please feel free to share any findings from their side here, as they may help determine whether any change is required on the FMOD side.

---

<div class="post-metadata">

**Author:** ![shertigan](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/shertigan/32/8170_2.png) [@shertigan](https://qa.fmod.com/u/shertigan)\
**Post date:** [June 23, 2026, 2:57pm UTC](https://qa.fmod.com/t/cant-play-one-shot-errorlookup-failed-for-eventmodel-00000000-0000-0000-0000-000000000000/21598/13 "2026-06-23T14:57:19Z")

</div>

I joined Odin’s discord community and found some people with the same problem. Someone even created a custom editor tool to work around the issue and solve it !

> **[GitHub - My-Key/OdinFMODSupport](https://github.com/My-Key/OdinFMODSupport)**
>
> Contribute to My-Key/OdinFMODSupport development by creating an account on GitHub.

I’m sharing the tool here, so maybe you can check if something can be done to natively prevent the issue? If anything has to be fixed on Odin’s side, I can try to transmit.

---

<div class="post-metadata">

**Author:** ![li\_fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/li_fmod/32/6577_2.png) [@li\_fmod](https://qa.fmod.com/u/li_fmod)\
**Post date:** [June 25, 2026, 12:25am UTC](https://qa.fmod.com/t/cant-play-one-shot-errorlookup-failed-for-eventmodel-00000000-0000-0000-0000-000000000000/21598/14 "2026-06-25T00:25:34Z")

</div>

Thank you for sharing the repository!

We reviewed both implementations. Even the smaller “Basic” workaround relies on Odin-specific APIs to copy the value from Odin’s temporary serialized object back into its own `ValueEntry`.

FMOD’s `EventReference` drawer works through Unity’s standard `SerializedProperty` system, and we would not be able to incorporate this workaround directly without adding and maintaining an Odin-specific integration.

For now, the workaround you found appears to be the most practical option for this Odin serialization setup. It may also be worth reporting this behaviour to Odin support, as the value appears to be lost when it is passed back into Odin’s serialization system.

Thanks again for taking the time to investigate this and for sharing the workaround.