Unreal Engine Issues

~FStaticMesh() can crash with race condition

UDN user reported frequent crashes in FStaticMesh::~FStaticMesh() on DrawListLinks[i]->Remove(false); Crash went away after adding critical sections to FStaticMesh::LinkDrawList(), FStaticMesh::Unl ...

Editor crashes when edit foliage assigned to data layer in foliage mode

UMG SetAnimationCurrentTime no longer works

Collison and Simple Collision Mip Level Crash

HTML5 Engine Scalability set via C++ are not kept.

HTML5 packaged or Launched On games are not keeping settings to the ScalabilityQuality.X when deployed to Chrome 64 or NIghtly Build. Project for Repro: [Link Removed] ...

Collapsed Nodes do not move with their functions

When you create a function and collapse nodes within it, the collapsed nodes to not follow the function category switch. I also noticed that when you move the function around that has the collapsed ...

Crash when displaying lumencards on map with many objects

There is a thread conflict between FRDGBuilder execution in Background Worker and LumenVisualizer's LumenCard add/delete process. When lumen cards are displayed in a scene with many objects, a crash ...

Scaling pivot ignores pivot being used

Scaling pivot of an actor does not scale correctly unless used for all directions. ...

Crash when opening and closing custom profiles and then closing UFE

Semi sporadic crash is occurring when switching between profiles in UFE and then exiting out This could not be repro'd on a Win7 machine with and Nvidia 980, could not be repro'd on a Win10 machine ...

DiffuseIndirect_Lumen_3 parameter missing and causing crash with Screen Space reflections and Lumen Async Compute

When the Reflection Method is set to Screen Space and Lumen reflections async compute is enabled Unreal will crash because DiffuseIndirect_Lumen_3 parameter missing, due to how DenoiserOutputs are o ...