Unreal Engine Issues

FAsyncIOSystemBase::QueueDestroyHandleRequest fatal error crash on launch or package

Fatal error due to FAsyncIOSystemBase::QueueDestroyHandleRequest during launching and packaging projects. May be linked to: [Link Removed] ...

Force Delete of Referenced SpeedTree Instance causes Crash

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Assertion failed: IsValid() [Link Removed] [Line: 780] Source Context: 1873 ...

Disabling LQ lightmaps causes crash on mobile preview

Crash in Particle System GetVertexAndIndexData on certain OPPO devices

When show propertymatrix and delete target actor, the editor crash

It looks like it is null reference in propertymatrix. It always occurs when I execute the reproduction procedure. ...

Calling UHierarchicalInstancedStaticMeshComponent::AddInstance multiple times causes crash

Calling UHierarchicalInstancedStaticMeshComponent::AddInstance multiple times causes multiple BuildTrees to be created and run asynchronously at the same time. Tested in 4.21(CL - 4613538) How t ...

AR Handheld Template crashes when launched on to Android device

AR Handheld template appears to close immediately after opening on Android device ...

Crash when using Find in Blueprints with String Table references

Enable VisibilityCollision on ES31 preview and restart editor, it crashed.

Occasional crash when attempting to in-app purchase on Android device

App is frequently terminated with a NullPointerException when attempt to request in-app purchase. It is assumed that product information cannot be retrieved if there is no Google account logged in t ...