Unreal Engine Issues
Unreal Engine Issues
Creating MaterialInstanceDynamic for a moving/crumbled geometry collection component, the rendering position is reset to the initial location
UE - Simulation - Physics - Destruction - Apr 23, 2024Creating a MID makes the render state dirty and the engine will recreate a new scene proxy without the current attitude. This results in rendering the object in incorrect location. Here is a tempor ...
Using Clip() in a material may cause the outline to be displayed incorrectly on the Editor.
UE - Graphics Features - May 3, 2024This appears to be from an interaction between the Depth Fade Expression, clip() in a Custom Expression, WPO being enabled, and the fact that the pass that draws objects for the editor outline runs ...
EnhancedEditorInput.bAutomaticallyStartConsumingInput editor setting resets to false on editor startup.
UE - Gameplay - Input - Jun 17, 2024The editor setting for automatically start consuming input can be set to enabled as a boolean, but whenever the editor restarts this value is reset to false. ...
Crashes when applying material on objects after changing UV mapping parameters with Lumen enabled.
TM - Core - Jun 20, 2024Info from the user: "This is super basic, only just started to build the scene. I have modeled in Vectorworks 2024 Architect and imported it into Twinmotion via the export and not the live link. The ...
Small UInstancedStaticMeshComponent::UpdateInstanceTransformById bug
UE - Graphics Features - Nov 20, 2024The call to UpdateInstanceTransform within UInstancedStaticMeshComponent::UpdateInstanceTransformById(..) sends bTeleport in place of bMarkRenderStateDirty that was added as part of Unreal Engine 5. ...
Editor preview window for CurveLinearColorAtlas does not automatically update when their CurveLinearColor asset is changed
UE - Graphics Features - Nov 12, 2024When the CurveLinearColor asset assigned to a CurveLinearColorAtlas is edited (e.g. change the colors of the gradient), the preview window of CurveLinearColorAtlas editor does not automatically upda ...
SetActorLabel() is slow on Landscapes
UE - Content Tools - Terrain - Landscape - Jan 7, 2025I've noticed calling SetActorLabel() on a Landscape will call PostEditPropertyChanged() which causes the Landscape Components to regenerate all collisions. As per the repro, this can take a long tim ...
Self Shadow enabled causes shadow artifacts
UE - Graphics Features - Sep 4, 2015Shadow artifacts will appears when the camera is moving towards a character or if playing will appears with the character if Self Shadow is enabled for the character. Sample video and image attache ...
Hang and Memory Spike when you create an endless loop in AnimBP Event Graph
OLD - Anim - Oct 27, 2015Hang and memory spike (that doesn't go away) when you create an endless loop in AnimBP. Blueprints have a safeguard against this when you try to PIE with an endless loop, but I think the Animation ...
Infinite Script Recursion error crashes editor and produces UnrealScript errors in logs
UE - Gameplay - Blueprint - Aug 14, 2015Macro that causes an infinite script recursion error crashes editor and produces errors in output log referring to UnrealScript. Frequency: 3/3 Crash Reporter; [Link Removed] ...