Not working…
Turn on EDL actually remove this error message, however, it triggers another error message:
Assertion failed: AsyncLoadingThread.RecursionNotAllowed.Increment() == 1 [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Runtime/CoreUObject/Private/Serialization/AsyncLoading.cpp] [Line: 3959]
Based of suggestions from this thread https://answers.unrealengine.com/questions/676511/event-driven-loading-broken-async-loading-thread-b.html
I should turn off EDL…
There is still no solution for me…