Hi! Thanks for your idea. I enabled “Async Loading Thread” as well.
But now I’m getting the error below.
Assertion failed: IsInGameThread() [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/CoreUObject/Private/UObject/UObjectGlobals.cpp] [Line: 1092] Unable to load /Game/LOTE_Files/Audio/LOTE_Master. Objects and Packages can only be loaded from the game thread.
Edit: I fixed the problem. In the project settings, audios were empty. Make sure they are not empty.
