Unreal Engine Issues

Normal of Skeletal Mesh is incorrect when Recompute Tangent is used when Skincache is enabled

This issue occurs in Skeletal Mesh depending on the model when Skincache is enabled and affects the rendering. ...

Reflection result of clear coat bottom normal is not correct.

This problem tends to appear in the southern hemisphere of spherical objects. It is not reproduced in 4.19. ...

Hot reloading newly created C++ project compiles modules

This is a regression from 4.15.2 and occurs on both Windows and Mac. Affects both Binary and Github builds. ...

Copy Pose From Mesh Node Does Not Preview in Sequencer

Copy Pose From Mesh node does not affect the animation when previewing in Sequencer. This works when played in the editor. ...

Console is off screen in VR preview when windows scaling is set to 150% or above

Windows scaling appears to affect the HMD if the project is open on a screen with window scaling being used. ...

Significant editor slowdowns when moving blueprinted actors while having a different complex blueprint open

A Blueprinted actor's construction script time can be affected by the complexity of an opened level Blueprint. ...

Vulkan crashes on Adreno Galaxy S7

Warp Utils plugin crashes on Editor restart

Enabling the Warp Utils plugin and restarting the Editor causes it to crash. This is a regression from 4.24.3 (CL-11590370). This was reported and tested in 4.25 Preview 2 (CL-12055273) and reprodu ...

[CrashReport] UE4Editor-Kismet.dylib!FTabInfo::OnMouseDownHisory(FGeometry const&, FPointerEvent const&, TWeakPtr<SMenuAnchor,()

This is a common crash affecting Mac users in 4.16. It has occurred since at least 4.13 ...

Unreal crash on STEP file datasmith import

Unreal Crash on .STEP file using the  Datasmith importer. Works fine in 4.19.2  ...