# \[Unity WebGL + FMOD 2.02.05\] Certain events / GUIDs are missing, but only in WebGL builds?

**URL:** <https://qa.fmod.com/t/unity-webgl-fmod-2-02-05-certain-events-guids-are-missing-but-only-in-webgl-builds/18316>\
**Category:** Unity\
**Tags:** unity\
**Created:** [February 2, 2022, 5:05pm UTC](https://qa.fmod.com/t/unity-webgl-fmod-2-02-05-certain-events-guids-are-missing-but-only-in-webgl-builds/18316 "2022-02-02T17:05:44Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![arcoppi](https://avatars.discourse-cdn.com/v4/letter/a/bcef8e/32.png) [@arcoppi](https://qa.fmod.com/u/arcoppi)\
**Post date:** [February 2, 2022, 5:05pm UTC](https://qa.fmod.com/t/unity-webgl-fmod-2-02-05-certain-events-guids-are-missing-but-only-in-webgl-builds/18316/1 "2022-02-02T17:05:44Z")

</div>

Hello!

I’ve run into the following issue: all of our SFX events fire properly in any runtime environment, but our music event fails to fire exclusively in WebGL builds.

Event reference setup:

 ![fmodcapture2](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/3/3bea39504b606c36f0f2904bc5fadd913d9ec5d3.png)

WebGL runtime error:

 ![fmodWebGLError](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/e/e025fe0c2b6c1b4212c5e48d1b3a594a68e00274.png)

As you can see, the GUID in the event reference matches what’s in the error log; what’s super strange is the music plays just fine in-editor and in native builds.

We’ve tried building for all platforms from FMOD and refreshing banks within Unity, but the problem persists. Could I be trying to access the event before FMOD has fully loaded it in-browser?

Our target platform is WebGL, so unfortunately this is a pretty big blocking issue.

Thanks so much for your help; have been struggling with this for a couple of days now. Cheers, Alex

---

<div class="post-metadata">

**Author:** ![jeff\_fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/jeff_fmod/32/1766_2.png) [@jeff\_fmod](https://qa.fmod.com/u/jeff_fmod)\
**Post date:** [February 3, 2022, 4:15am UTC](https://qa.fmod.com/t/unity-webgl-fmod-2-02-05-certain-events-guids-are-missing-but-only-in-webgl-builds/18316/2 "2022-02-03T04:15:46Z")

</div>

I think you are correct that this is an issue with the event not being fully loaded. There is a requirement to [load banks asynchronously on HTML5](https://fmod.com/resources/documentation-unity?version=2.02&page=platform-specifics.html#async-loading), I recommend you take a look at our [Async Loading](https://fmod.com/resources/documentation-unity?version=2.02&page=examples-async-loading.html) example and implement your own bank loading scene.

---

<div class="post-metadata">

**Author:** ![arcoppi](https://avatars.discourse-cdn.com/v4/letter/a/bcef8e/32.png) [@arcoppi](https://qa.fmod.com/u/arcoppi)\
**Post date:** [February 5, 2022, 6:35pm UTC](https://qa.fmod.com/t/unity-webgl-fmod-2-02-05-certain-events-guids-are-missing-but-only-in-webgl-builds/18316/3 "2022-02-05T18:35:13Z")

</div>

Thank you so much!! Adding asynchronous loading was exactly what solved the problem 🙂