# Failed to encode bank. A specific file could not be found. Unreal Engine events inaudible

**URL:** <https://qa.fmod.com/t/failed-to-encode-bank-a-specific-file-could-not-be-found-unreal-engine-events-inaudible/18707>\
**Category:** Unreal Engine\
**Tags:** ue4\
**Created:** [April 28, 2022, 4:14pm UTC](https://qa.fmod.com/t/failed-to-encode-bank-a-specific-file-could-not-be-found-unreal-engine-events-inaudible/18707 "2022-04-28T16:14:52Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![JHalliwell](https://avatars.discourse-cdn.com/v4/letter/j/e68b1a/32.png) [@JHalliwell](https://qa.fmod.com/u/JHalliwell)\
**Post date:** [April 28, 2022, 4:14pm UTC](https://qa.fmod.com/t/failed-to-encode-bank-a-specific-file-could-not-be-found-unreal-engine-events-inaudible/18707/1 "2022-04-28T16:14:52Z")

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As soon as I build my FMOD session all the FMOD events within Unreal become inaudible. Here is what FMOD says when I build.  
 ![image](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/0/08f66ba82436039142c4ef157fd74eaa52bc901e.png)  
Can anyone help?

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**Author:** ![richard\_simms](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/richard_simms/32/261_2.png) [@richard\_simms](https://qa.fmod.com/u/richard_simms)\
**Post date:** [May 4, 2022, 2:07am UTC](https://qa.fmod.com/t/failed-to-encode-bank-a-specific-file-could-not-be-found-unreal-engine-events-inaudible/18707/2 "2022-05-04T02:07:11Z")

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Are you able to find any issues if you click File \> Validate Project?

If not, could you open the logs (Window \> Console \> Logging) and build again? Are there any warnings in yellow or errors in red that you can see when a build is started?

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<div class="post-metadata">

**Author:** ![mlopezvidal](https://avatars.discourse-cdn.com/v4/letter/m/94ad74/32.png) [@mlopezvidal](https://qa.fmod.com/u/mlopezvidal)\
**Post date:** [January 23, 2025, 2:19pm UTC](https://qa.fmod.com/t/failed-to-encode-bank-a-specific-file-could-not-be-found-unreal-engine-events-inaudible/18707/3 "2025-01-23T14:19:19Z")

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hey! reviving this topic. I found the same error. Here is the log:

```auto

14:17:55 A specified file could not be found. 
14:17:55 "FMOD_ERROR (65536): Unknown error." 
14:17:55 "FMOD_ERROR c:\\buildagent1\\work\\29f5653b6668a299\\studio\\src\\model\\bank.cpp(136): modelBuilder.builder()->writeToStream(&stream, bankVersion, exportFlags)" 
14:17:55 [Write D:/UE5_Development_MikeL/TheOcultistProject/Content/FMOD/Desktop/01_Forest.bank to file]: Time taken is 84.27ms (0.084s) 
14:17:55 "FMOD_ERROR (65536): Unknown error." 
14:17:55 "FMOD_ERROR c:\\buildagent1\\work\\29f5653b6668a299\\studio\\src\\model\\bank.cpp(150): buildBank(this, dataType, absoluteBinaryPath(platform, locale, sBankSuffix(dataType)))" 
14:17:55 [Build bank "01_Forest"]: Time taken is 120.89ms (0.120s) 
14:17:57 [Build 15 banks for 1 platforms]: Time taken is 1494.61ms (1.494s)

```

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<div class="post-metadata">

**Author:** ![mlopezvidal](https://avatars.discourse-cdn.com/v4/letter/m/94ad74/32.png) [@mlopezvidal](https://qa.fmod.com/u/mlopezvidal)\
**Post date:** [January 23, 2025, 2:28pm UTC](https://qa.fmod.com/t/failed-to-encode-bank-a-specific-file-could-not-be-found-unreal-engine-events-inaudible/18707/4 "2025-01-23T14:28:43Z")

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Hey!

Found the fix. Sharing it here.  
So, I went through all of the events in the bank with the issue. I recently added some new asset to an event and I found, exploring the asset browser, that the file was flagged as **#modified**

I was unable to re-import the file. it said is an unsupported format although it was a .wav file. I changed the name (probably it had some unsupported weird character on it) and it works now. Rebuilded and working.

So, if this happen, search for #modified assets in your asset browser and check if FMOD is loading them properly !

Cheers