Unreal Engine Issues

Control Rig parameters don't function in the AnimBP after the Editor restarts

Control Rig parameters don't function after editor restarts. Also the default values don't function and you need to use an input instead of directly editing the values of the pins. You can work aro ...

Anim Curve Data Does Not Appear in Montages When Using Animation Modifier, MotionExtractorModifier

Occurs 5/5 times Regression does not occur as the MotionExtractorModifier appears to be new with UE5.  Curve data is not displayed in an Animation Montage when Animation Modifier, MotionExtractorM ...

UWorld::GetNetMode returns incorrect value during UGameInstance::StartPlayInEditorGameInstance

During PIE instance initialization, there seems to be a window during which UWorld::GetNetMode will not return the expected value: before the instance's NetDriver has been created but after UGameIns ...

Android sessions do not appear in Session Frontend

GPU Particle Collision causes shaking when set to bounce with low resilience.

A particle emitter with GPU sprites on certain settings will shake violently as they collide with the ground. This requires there to be a strong Const Acceleration module and Collision with low resi ...

Material ParticleRandom node doesn't have proper value returned in specific case

CreateD3D12Texture causes the Low Level Memory system to register two allocations for the same pointer on the same track channel

CreateD3D12Texture causes two OnLowLevelAllocs in LLM to be called with the same pointer and the same channel, leading to a warning. LLM WARNING: Replacing allocation in tracking map. Alloc/Free Mi ...

[CrashReport] UE4Editor_Engine!LoadSpecialMaterial() [unrealengine.cpp:1523]

This is a longstanding crash that has occurred for more than 200 users since at least 4.13. Based on user descriptions this appears to permanently corrupt a project. User DescriptionsI just turned ...

[CrashReport] DerivedDataCache!TArray<unsigned char,FDefaultAllocator>::ResizeForCopy

This is an infrequent crash coming out of the 4.17 release. Users have not provided any descriptions of their actions when the crash occurred. It seems to be a different issue, but the callstack sh ...

'Autosized' SWindow with `.AutoHeight()` elements has unwanted white space

Heavily discussed and diagnosed in this thread: [Link Removed] [Link Removed] narrowed down the cause: It's the calculation inside the SWindow that is wrong, sometime. It adds SWindowDefs::Default ...