Unreal Engine Issues
Unreal Engine Issues
AllowAsyncRenderThreadUpdatesEditorGameWorld/AllowAsyncRenderThreadUpdatesEditor CVars are off by default and unsafe in Niagara
UE - Niagara - Mar 4, 2025This user made a github pull request: [Link Removed] but it was auto rejected. I think that we can consider taking their fixes, but keeping it disabled by default. ...
Enhanced input user settings file on consoles may behave unexpectedly after login change
UE - Gameplay - Input - Feb 27, 2025The user settings seem to be initialized incorrectly. I think that this might be because, technically, when you log out and sign back in we might use the same ULocalPlayer in some cases on the conso ...
VisualizeTexture with the BMP flag causes a crash when any mip over mip0 is requested
UE - Rendering Architecture - Dec 18, 2024When a mip level higher than 0 is requested in VisualizeTexture, the engine will crash. The root cause appears to be VisualizeTexture.cpp:924, on which an incorrect mip level is used to read a non-m ...
CSM shadow casters falsely culled due to incorrect primitive octree test
UE - Graphics Features - Shadows - Sep 13, 2024While setting up whole scene shadows, CasterOuterFrustum is used to cull shadow casters from PrimitiveOctree. CasterOuterFrustum doesn't extend far back enough, which means that if an octree node fi ...
Invalidation panels can retain stale hittest data when caching is disabled/enabled
UE - Editor - UI Systems - Slate - Aug 20, 2024Changes to the hit test grid of an invalidation panel while caching is disabled won't be respected when caching is reenabled. This can cause interactive widgets such as buttons who were set to colla ...
Exposure compensation curves do not blend
UE - Graphics Features - Jun 26, 2024Requested in https://udn.unrealengine.com/s/question/0D5QP000006g7Px0AI/auto-exposure-various Previously discussed in https://udn.unrealengine.com/s/question/0D52L00004vKeNJSA0/blending-postproce ...
Allowed ranges for the different Exposure Settings in PPV are not consistent
UE - Graphics Features - Jun 26, 2024https://udn.unrealengine.com/s/question/0D5QP000006g7Px0AI/auto-exposure-various Caused by inconsistent usage of ClampMin/ClampMax/UIMin/UIMax in Scene.h Ranges should also be modified based on ...
Lyra: GA_Melee uses disallowed NetMulticast RPC for melee impact sound
UE - Gameplay - Gameplay Ability System - Jun 13, 2024The melee gameplay ability GA_Melee uses a NetMulticast RPC which isn't allowed and causes a blueprint validation error: GA_Melee.uasset: Gameplay Abilities are not replicated to Simulated Proxies ...
SpringArmComponent with "Use Camera Lag Substepping" does not handle fluctuating frame rates correctly
UE - Gameplay - Jun 4, 2024The description of SpringArmComponent's "Use Camera Lag Substepping" option says "sub-step camera damping so that it handles fluctuating frame rates well". However, as noted and explained by a licen ...
Nanite mesh shadows not updating when CSMCaching enabled
UE - Platform - Mobile - May 25, 2024A Nanite primitive casting a CSM shadow on another Nanite primitive with "Cast Shadows" disabled, will have it's shadow disappear completely when r.Shadow.CSMCaching = 1. ...