# Warnings causing massive freezing in Unity

**URL:** <https://qa.fmod.com/t/warnings-causing-massive-freezing-in-unity/20854>\
**Category:** Unity\
**Created:** [November 8, 2023, 6:24pm UTC](https://qa.fmod.com/t/warnings-causing-massive-freezing-in-unity/20854 "2023-11-08T18:24:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![adambenko](https://avatars.discourse-cdn.com/v4/letter/a/a8b319/32.png) [@adambenko](https://qa.fmod.com/u/adambenko)\
**Post date:** [November 8, 2023, 6:24pm UTC](https://qa.fmod.com/t/warnings-causing-massive-freezing-in-unity/20854/1 "2023-11-08T18:24:23Z")

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Suddenly, I started receiving these kind of errors and warnings:

FMOD] EventInstance::update : Event {974a7fd2-2309-4e77-b10b-2132c243f953} waited 288055 milliseconds for sample data to load. Preload sample data to avoid this delay.

UnityEngine.Debug:LogWarning (object)  
FMODUnity.RuntimeManager:DEBUG\_CALLBACK (FMOD.DEBUG\_FLAGS,FMOD.StringWrapper,int,FMOD.StringWrapper,FMOD.StringWrapper) (at Assets/Plugins/FMOD/src/Runtime/RuntimeManager.cs:32)

These cause unity to freeze for a long time. They appear only after a freeze.

These appear in hundreds after the game has progressed in time:

FMOD] SoundSourceInstrumentInstance::startChannelIfReady : Loading delay exceeded, sound may play at incorrect time

UnityEngine.Debug:LogWarning (object)  
FMODUnity.RuntimeManager:DEBUG\_CALLBACK (FMOD.DEBUG\_FLAGS,FMOD.StringWrapper,int,FMOD.StringWrapper,FMOD.StringWrapper) (at Assets/Plugins/FMOD/src/Runtime/RuntimeManager.cs:32)

And this one:

[FMOD] FMOD\_OS\_Semaphore\_Signal : ReleaseSemaphore failed, getLastError = 298.

UnityEngine.Debug:LogError (object)  
FMODUnity.RuntimeManager:DEBUG\_CALLBACK (FMOD.DEBUG\_FLAGS,FMOD.StringWrapper,int,FMOD.StringWrapper,FMOD.StringWrapper) (at Assets/Plugins/FMOD/src/Runtime/RuntimeManager.cs:28)

I have not changed anything with my project related with FMOD but suddenly, FMOD started freezing unity for minutes and I have no idea what could cause this.  
I have tried using “Load Bank Sample Data” option but it did not help.  
Thanks the for help.

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<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:** [November 10, 2023, 12:58am UTC](https://qa.fmod.com/t/warnings-causing-massive-freezing-in-unity/20854/2 "2023-11-10T00:58:26Z")

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Hi,

What version of the FMOD Unity integration are you using?

Would it be possible to get a Profiler session ([FMOD Studio | Profiling](https://fmod.com/docs/2.02/studio/profiling.html)) recorded while you are experiencing the issue and package it with the following settings:  
 ![image](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/a/a5fae4cf5a5a5b570b4f75df4cdfeab195633169.png)

Please then [upload](https://fmod.com/profile#uploads) the package to your [profile](https://fmod.com/profile). Note that you will have to register a project with us to be able to upload to your profile.