# Unity crashes when i preview scene after building in Fmod **URL:** \ **Category:** Unity\ **Created:** [July 6, 2020, 12:58am UTC](https://qa.fmod.com/t/unity-crashes-when-i-preview-scene-after-building-in-fmod/15946 "2020-07-06T00:58:09Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![mongz](https://avatars.discourse-cdn.com/v4/letter/m/6f9a4e/32.png) [@mongz](https://qa.fmod.com/u/mongz)\ **Post date:** [July 6, 2020, 12:58am UTC](https://qa.fmod.com/t/unity-crashes-when-i-preview-scene-after-building-in-fmod/15946/1 "2020-07-06T00:58:09Z")
Hello, I’m running into an issue where Unity will crash after I build in Fmod, im making sure i get the success message in Unity before im clicking on the play button, im now having to restart Unity after every update i do to test in Fmod, slowing workflow incredibly. Any idea what’s causing this or how to fix this? Heres the end of the Unity log file before it crashes: FMOD Studio: copy banks for platform Windows : copying banks from Fmod/DarkEnergy/Build/Desktop to D:/Projects/Unity/dark\_matter/Assets/StreamingAssets succeeded UnityEngine.DebugLogHandler:Internal\_Log(LogType, LogOption, String, Object) UnityEngine.DebugLogHandler:LogFormat(LogType, Object, String, Object[]) UnityEngine.Logger:Log(LogType, Object) UnityEngine.Debug:Log(Object) FMODUnity.EventManager:CopyToStreamingAssets() (at Assets\Plugins\FMOD\src\Editor\EventManager.cs:610) FMODUnity.EventManager:RefreshBanks() (at Assets\Plugins\FMOD\src\Editor\EventManager.cs:39) FMODUnity.EventManager:Update() (at Assets\Plugins\FMOD\src\Editor\EventManager.cs:683) System.Reflection.MonoMethod:InternalInvoke(Object, Object[], Exception&) System.Reflection.MonoMethod:Invoke(Object, BindingFlags, Binder, Object[], CultureInfo) System.Reflection.MethodBase:Invoke(Object, Object[]) System.Delegate:DynamicInvokeImpl(Object[]) System.MulticastDelegate:DynamicInvokeImpl(Object[]) System.Delegate:DynamicInvoke(Object[]) UnityEditor.EditorApplication:Internal\_CallUpdateFunctions() (Filename: Assets/Plugins/FMOD/src/Editor/EventManager.cs Line: 610) Refresh completed in 0.093536 seconds. RefreshInfo: RefreshV2(ForceSynchronousImport) RefreshProfiler: Total: 0.000ms InvokeBeforeRefreshCallbacks: 93.229ms ApplyChangesToAssetFolders: 0.337ms WriteModifiedImportersToTextMetaFiles: 0.060ms CleanLegacyArtifacts: 0.000ms Scan: 0.000ms OnSourceAssetsModified: 85.478ms UnregisterDeletedAssets: 0.000ms InitializeImportedAssetsSnapshot: 0.000ms GetAllGuidsForCategorization: 3.940ms CategorizeAssets: 0.000ms ImportAndPostprocessOutOfDateAssets: 0.000ms (0.000ms without children) ImportManagerImport: 0.000ms (0.000ms without children) ImportInProcess: 0.000ms ImportOutOfProcess: 0.000ms UpdateCategorizedAssets: 0.000ms RemoteAssetCacheGetArtifact: 0.000ms (0.000ms without children) RemoteAssetCacheResolve: 0.000ms RemoteAssetCacheDownloadFile: 0.000ms CompileScripts: 0.000ms PostProcessAllAssets: 0.000ms ReloadImportedAssets: 0.000ms VerifyAssetsAreUpToDateAndCorrect: 0.000ms EnsureUptoDateAssetsAreRegisteredWithGuidPM: 0.000ms InitializingProgressBar: 0.000ms PostProcessAllAssetNotificationsAddChangedAssets: 0.000ms OnDemandSchedulerStart: 0.000ms RestoreLoadedAssetsState: 0.000ms InvokeProjectHasChanged: 0.000ms UpdateImportedAssetsSnapshot: 0.000ms ReloadSourceAssets: 0.000ms UnloadImportedAssets: 0.000ms Hotreload: 0.000ms FixTempGuids: 0.074ms VerifyGuidPMRegistrations: 0.006ms GatherAllCurrentPrimaryArtifactRevisions: 0.000ms UnloadStreamsBegin: 0.215ms LoadedImportedAssetsSnapshotReleaseGCHandles: 0.009ms GetLoadedSourceAssetsSnapshot: 0.561ms PersistCurrentRevisions: 1.547ms UnloadStreamsEnd: 0.000ms GenerateScriptTypeHashes: 0.007ms Initialized touch support. ---
**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\ **Post date:** [July 13, 2020, 4:44am UTC](https://qa.fmod.com/t/unity-crashes-when-i-preview-scene-after-building-in-fmod/15946/2 "2020-07-13T04:44:27Z")
What versions of FMOD and Unity are you using? When exactly are you getting the crash? ---
**Author:** ![mongz](https://avatars.discourse-cdn.com/v4/letter/m/6f9a4e/32.png) [@mongz](https://qa.fmod.com/u/mongz)\ **Post date:** [July 15, 2020, 2:34pm UTC](https://qa.fmod.com/t/unity-crashes-when-i-preview-scene-after-building-in-fmod/15946/3 "2020-07-15T14:34:30Z")
Hi Cameron, Thanks for answering. Versions are Fmod 2.00.09 and Unity 2019.4.2f1 So the crash always happens when i build in Fmod and then go to play preview in Unity, Unity will completely freeze up and i have to close it down in the windows task manager. The only way around this is if i don’t have unity open and make sure all processes of it are closed in the task manager when i do a build in Fmod, then open unity and test, after i test before i make any changes in Fmod i need to close down unity all again, make changes in fmod, build it and then reopen unity, as u can imagine this is an extremely tedious work around, had to work like this for a game jam last weekend which completely was not ideal. Also to clarify its unity freezing up not fmod after i do the build in fmod. ---
**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\ **Post date:** [July 23, 2020, 6:17am UTC](https://qa.fmod.com/t/unity-crashes-when-i-preview-scene-after-building-in-fmod/15946/4 "2020-07-23T06:17:06Z")
Sorry for the delay, I have not been able to reproduce the issue here. Are you able to share a project that reproduces this at all? ---
**Author:** ![mongz](https://avatars.discourse-cdn.com/v4/letter/m/6f9a4e/32.png) [@mongz](https://qa.fmod.com/u/mongz)\ **Post date:** [July 23, 2020, 12:49pm UTC](https://qa.fmod.com/t/unity-crashes-when-i-preview-scene-after-building-in-fmod/15946/5 "2020-07-23T12:49:27Z")
Hi Cameron, not a problem, after some digging around i found out it was a sound card driver issue so i just updated my realtek drivers to the latest and that has seemed to fix the issue, im even able to use the live update now which is great, super happy with this as my workflow has gone from 0 to 11, anyways thanks so much for the response, im sure ill be back with more questions! 😃