Unreal Engine Issues

Reimporting Static Mesh LODs yields unexpected material assignments

Reimporting an asset after making changes causes loss of saved LOD changes when editing a static mesh. Similar issue was logged and fixed for SkeletalMeshes but this issue is still occurring for ...

Decal Fading parameters are completely broken

Lighting on Paper 2D Tile Maps is Broken

In 4.18.3 this feature is working. In 4.19.2 the feature is broken. Per User: Half of the Lights Cone or Sphere will properly interact with the TileMap as intended, the other half will not for wha ...

Particle record in the Matinee leads to crash when playing after record.

Particle record feature in the matinee seems not properly working in the Editor. When trying to play in the matinee with recorded keys, the Engine will crash with Access violation - code c0000005. ...

When painting on a landscape with edit layers, there are UV distortions happening across the boundaries of paint layers when material is using SetMaterialAttributes

Context Landscape Edit Layers enables users to paint landscapes using non-destructive layers, and can add multiple layers to the landscape that can be edited independently from each other. Problem ...

LIVE: Setting sg.EffectsQuality between values will reset Destructible meshes if they have fractured

DESCRIPTION: Using the command line sg.EffectsQuality and setting a value will reset a destructible mesh if it has already been fractured. AH Post: https://answers.unrealengine.com/questions/12850 ...

Crash when playing a other Level Sequence inside a Spawnable Actor registered with Level Sequence

This issue crashes on exit when playing a other Level Sequence on an Event in a Spawnable Actor. Also this problem doesn't occur in 4.25. ...

Montage with multiple slots will only ever use root motion from the first slot

Montage with multiple slots will only ever use root motion from the first slot ...

Make PostProcessSettings reference to Blendables are listed as not tagged correctly

Attempting to change the Weight of a Weighted Blendable at runtime via the Level Blueprint leads to a warning generated by the Make PostProcess Settings node:Warning Blendables - the native proper ...

Can't set "r.Shaders.Optimize" to false in UE5.4

The CVar "r.Shaders.Optimize" cannot be set to false from DefaultEngine.ini in the section "[ShaderCompiler]" as its help text describes. Also tested on UE5-Main, CL: 34200103 ...