Unreal Engine Issues
Unreal Engine Issues
Race condition triggers an ensure 'bIsInitialized && Other.bIsInitialized' inside FVisualLogEntry::MoveTo on animation worker thread
UE - AI - Debugging - Oct 18, 2024A licensee reported occasionally triggers an ensure during automation testing, potentially when the GameThread flushes Visual Logger via FVisualLogger::Flush() and an animation worker thread executi ...
Lumen doesn't handle Area Lights Reflection Occlusion well
UE - Graphics Features - Lumen - Oct 18, 2024Crash (Assertion failed "SystemInstanceController->IsSolo()") when enabling "Start with Tick Enabled" on a Niagara Component
UE - Niagara - Oct 17, 2024Currently, Niagara Components are only expected to have their TickComponent() method called when their system is marked as "Solo", which makes them be simulated individually. In the most common scen ...
Decals custom depth/stencil side effect from Lumen
UE - Graphics Features - Oct 15, 2024The order of passes related to Decal rendering (without the DBuffer) and CustomDepth is changed by the CVar "r.Lumen.AsyncCompute", even when Lumen is not enabled. This causes Decal Materials that ...
[PCG] Handle potential deadlock case with UPCGLandscapeCache::GetCacheEntry
UE - World Creation - Procedural Tools - PCG Core - Oct 15, 2024It 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 ...
Decal normals causes underlying shadow masks to become visible
UE - Graphics Features - Oct 14, 2024When 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
UE - Rendering Architecture - RHI - Oct 11, 2024iOS package with Metal Desktop Renderer enabled crashes on iPhoneThis issue does not occur if Metal Desktop Renderer is disabled ...
CharacterMovement doesn't clear velocity
UE - Simulation - Physics - Oct 11, 2024Velocities are not being cleared when physics simulation set to false. ...
[Interchange] mesh outside LODs hierarchy are added to only lod 0 it should be added to all lods
UE - Editor - Content Pipeline - Import and Export - Oct 9, 2024Crash on PIE shutdown
UE - Anim - Sequencer - Oct 9, 2024threads: [Link Removed] [Link Removed] Another occurence: [Link Removed] ...