Unreal Engine Issues
Unreal Engine Issues
Crash when editing FRuntimeFloatCurve's curve from sequencer's edit key window
UE - Anim - Sequencer - Mar 31, 2023Crash when editing a FRuntimeFloatCurve curve exposed through EventTrack or a self-made Struct from the sequencer key edit window. FRuntimeFloatCurve does not support Expose to Cinematic, so this m ...
Display Texture Atlases in Widget Reflector displaying incorrect tooltips
UE - Editor - UI Systems - Slate - Aug 3, 2023Tooltips within Page 1 of the Texture Atlas Visualizer in Widget Reflector are displaying the incorrect asset. This issue is occurring in Binary //UE5/Release-5.3 at CL 26560699 This issue is occur ...
Rect light artifacts from NaN pixels on surfaces that are coplanar with light position
UE - Graphics Features - May 10, 2024Rect lights cause artifacts (nan pixels) on pixels of surfaces that are coplanar with light position. In RectLight.ush, in RectIrradianceLambert, at line 106, c30 is -1, so rsqrt(0) causes a nan to ...
Crash playing a HapticFeedbackEffect_Soundwave with no sound assigned
UE - Platform - XR - Sep 13, 2016Crash attempting to use a HapticFeedbackEffect_SoundWave with no sound set on it (i.e. a newly created one.) Found on: 4.13.1 Binary CL-3120228 //UE4/Release-4.13 CL-3123398 Similar to [Link Remo ...
Crash on UObject::ProcessEvent after 4.7 update
UE - Editor - UI Systems - Feb 27, 2015Crash Report [Link Removed] Bugg 38910 After updating project from 4.6.1 to 4.7, user experiences unexplained crash when playing in editor. *In addtion to the crash report, the user provides a lot ...
Inconsistance Line Trace behavior
UE - Simulation - Physics - Dec 22, 2016Line trace component appears to return a hit result even when the trace should not have had anything to hit. Attached project shows line trace start & end points. Even when the trace doesn't overla ...
Engine crash from opening level bounds blueprint after project reopens
UE - Gameplay - Blueprint - Jun 2, 2017There is a crash that is occurring when a blueprint with the parent of "Level Bounds". The crash occurs when the project is closed and reopened. Opening the blueprint immediately after it was create ...
Changing LODBias on landscape sections causes grass type placement issues
UE - LD & Modeling - Terrain - Landscape - Jun 6, 2018Changing LODBias on landscape sections causes a grass type placement issues. The grass will be floating and rotated incorrectly. Found in 4.18 CL# 3832480, 4.19 CL# 4033788, 4.20 Preview 1 CL# 4 ...
Enabling Skeletal Mesh 'Per Poly Collision' crashes the Editor
UE - Simulation - Physics - Aug 20, 2018When a Skeletal Mesh isn't assigned, enabling Per Poly Collision on the Skeletal Mesh Component causes the Editor to crash. This issue was reported and tested in 4.20.1 (CL-4233996). This issue was ...
Sequencer 3D Trajectories run very slow on deep hierarchies
UE - Anim - Sequencer - Aug 27, 2018Using a Level Sequence with deep hierarchies causes the FPS to drop to low numbers when they are all selected within the Sequence. This is a regression from 4.19.2 (CL-4033788). This issue was repo ...