Hello, we are upgrading our project currently from UE4.24 to UE4.26. We are experiencing a problem where fmodl.dll crashes the game in the main menu. Sometimes it happens when you click a button - other times it happens when you are moving your mouse. Sounds and music are playing just fine. A few …

Thanks for reporting this issue, we’ll investigate and release a fix as soon as possible.

The FMOD dll’s are binaries produced by building our proprietary source code and cannot be rebuilt unless you have a source license. If you’ve deleted them from the binaries folder you’ll need to restore them from the distributed package.

Ah ok. I did restore but do get a crash in fmodL.dll every map launch on dedicated server.

Thanks for clarifying - presumably it’s the same issue so hopefully we can find a fix for that soon.

If I had to guess, seems so. Maybe a race condition or something with that “first tick” load call expecting something to already be available or something of that nature. I have a rar file with a crash log, dmp and exe/pdb if I could privately get it to you or someone at FMOD. Sry I checked my logs…

If you’re able to upload logs and a crash dump using the Uploads tab on the user profile page at fmod.com that would be very helpful.

I DM’d you a drive link while I wait on permissions to upload in that section.

Thanks @mpactmatt , there’s a null pointer dereference in your crash dump and I’ve added it to our tracker to be fixed asap. I’m not entirely certain whether this is the same issue as others are reporting in this topic, and I haven’t had any luck reproducing the issue myself yet, so I’ll leave the t…

Would it be possible to get me an updated fmodL.dll to help test if the fix was successful before the full drop?

The fixes we need to make are in the UE4 plugin, not in the FMOD libraries, so there won’t be an updated fmodL.dll for this - we will push the fixes to the plugin to GitHub once they’re done though (and the official release should be close behind that).

fmodL.dll crashes the game on UE4.26

Unreal Engine

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UE4.25 Dedicated Server binary crashing after integrating basic FMOD events? Unreal Engine	1	922	December 19, 2020
“Loading DLL fmod.dll failed with status 0xc0000135” UE4.26 Xbox One Build Unreal Engine	1	324	December 7, 2021

fmodL.dll crashes the game on UE4.26

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