Unreal Engine Issues

[PCG] Handle potential deadlock case with UPCGLandscapeCache::GetCacheEntry

It is possible to get in a rare situation where PCG uses all Background workers while also having all its workers waiting on the FPCGLandscapeCacheEntry DataLock critical section. Since loading of ...

Ghosting effect of fast moving objects in Lumen

The Remove-On-Break feature, set on Fracture Mode on Geometry Collections, stops shrinking and shows strange behaviors

The Remove-On-Break (ROB) feature, set on Fracture Mode on Geometry Collections (GC), was supposed to make the particle shrink until it vanishes. When the GC goes to sleep the shrinking stops and sh ...

Decal normals causes underlying shadow masks to become visible

When using a Translucent or Modulate blend mode decal, the underlying shadow may become visible with VSMs, RT Shadows, and with the Pathtracer. When no normal is applied and a sphere is used to tes ...

iOS package with Metal Desktop Renderer enabled crashes on iPhone

iOS package with Metal Desktop Renderer enabled crashes on iPhoneThis issue does not occur if Metal Desktop Renderer is disabled ...

CharacterMovement doesn't clear velocity

Velocities are not being cleared when physics simulation set to false.  ...

Incorrect display of NavLinks when bFailedNavLinks is enabled

When bFailedNavLinkNavLink is enabled in RecastNavmesh, some NavLink points are debugged and others are not depending on the position of the NavLink point. In the sample project, enable bFailedNavL ...

[Interchange] mesh outside LODs hierarchy are added to only lod 0 it should be added to all lods

Crash on PIE shutdown

threads: [Link Removed] [Link Removed] Another occurence: [Link Removed] ...

Mesh Paint mode's Texture Paint has obvious artifact with UV seams

Mesh Painting Texture Paint tool can miss some pixels along UV seams, even with "Enable Seam Painting" set to True. This appears to be because of the difference between rasterization and sampling. ...