Unreal Engine Issues
Unreal Engine Issues
Auto Exposure Compensation Curve issue when switching from Manual to Histogram
UE - Rendering - Architecture - Feb 21, 2024When switching the Camera's Exposure Metering Mode from Manual toHistogram, the exposure level resets and takes time to settle. The Licensee has a proposed code change that would fix this issue. Als ...
Skylight Intensity causes brightness discrepancy between the pathtracer and realtime renderers
UE - Graphics Features - Aug 26, 2024In a scene without a sky sphere, increasing the skylight intensity will cause the sky to brighten in the pathtracer. Other renderers do not brighten the sky, and the intensity increase is applied on ...
Compiler Error when including InstancedSkinnedMeshComponent.h
The UE_EXPERIMENTAL macro is not used correctly in InstancedSkinnedMeshComponent.h. It should come after the 'class' keyword & before UInstancedSkinnedMeshComponent as specified in the documentation ...
Virtual Texture does not stream high-resolution data when assigned as a UI material to a widget.
UE - Rendering - Architecture - Mar 23, 2026When a Virtual Texture is applied as a UI material, there is no associated geometry, so it does not explicitly request the loading of high-res virtual texture tiles. ...
Opening particle system crashes editor
UE - Graphics Features - Jan 27, 2016Opening a specific particle system crashes the editor. If the particle system is used within a level and the level is played, the editor will crash with no callstack. Logs are attached. Frequency: ...
Project Launcher Back Icon Disappears when 'Use Small Toolbar Icons' is Enabled
Tools - Mar 31, 2015With 'Use Small Toolbar Icons' checked in the 'Editor Preferences', the 'Back' button within the 'Project Launcher' disappears. The expected would for the button to get smaller and not vanish entir ...
Setting the Falloff Distance of a Sound Wave/Cue to 0.0 will no longer Play Sound
UE - Audio - Jan 13, 2016As the title suggests, whenever you add a Sound Cue or Wave to a level and set it's 'Falloff Distance' to 0.0 the sound will no long play. I have attached a project to provide a simple regression t ...
Material Function CylindricalUVs is missing the Object Position
Docs - Samples - Sep 29, 2014The Material Fucntion CylindricalUVs is missing the Object Position node ADDITIONAL NOTES: You can see the UVs wrapping around 0,0,0 without the position node attached, instead of the mesh's pos ...
Particle Sprites Location jumps when Engine delta time stutters
UE - Graphics Features - Feb 11, 2015Particle Sprites will jump forward in level when engine delta time stutters due to a instant pushed rendering queue. [Link Removed] ...
UUserWidget::bIsFocusable serialization issues
UE - Editor - UI Systems - Mar 29, 2016See repro steps. Workaround Unset and set bIsFocusable on widget's class will allow bIsFocusable to be set and persist on the nested instance. ...