Unreal Engine Issues

Crash in PackagedBuild when using GPU & Data Interfaces

Due to module initialization order we are serializing shaders before the Niagara module has started up.  This means we are unable to find the default data interface for the GPU simulation to seriali ...

CompileAllBlueprints crashing on blueprint function with a delegate input.

In some scenarios, FPropertyDelegate::SignatureFunction can point to freed memory after a garbage collection run. This appears to be more common when running the CompileAllBlueprints commandlet. ...

Material editor crash in 5.0.2

FMassArchetypeData::ExecutionFunctionForChunk crashes on binding shared fragments

FMassArchetypeData::ExecutionFunctionForChunk is using wrong mappings while binding shared fragments. It's using RequirementMapping.ChunkFragments while it should use RequirementMapping.ConstSharedF ...

Collison and Simple Collision Mip Level Crash

SortConsecutiveSections could crash if opening a sequence that has null shots

Light Mixer crashes on transform context menu

Originates from UDN [Link Removed] ...

Assert when having too many VR devices

Internal team is encountering a crash when adding too many VR devices. Email thread titled "Re: Crash Logs" The bug is an internal limit of devices the code supports, which is 8. If a controller o ...

Crash on LinkerLoad trying to load font on the render thread

Assertion failed: FPlatformTLS::GetCurrentThreadId() == OwnerThread [Link Removed] [Line: 4641] Callstack: > UE4Editor-CoreUObject-Win64-Debug.dll!FLinkerLoad::Serialize(V, Length) Line 4641 C++ ...

Match3 crashes on device after locking and unlocking the screen on iOS

Aug 23 15:25:15 A6240 UnrealMatch3[987] <Warning>: Assertion failed: CommandEncoder.IsRenderPassDescriptorValid() [Link Removed] [Line: 700] Match3 does not resume after locking and unlocking the s ...