Unreal Engine Issues
Unreal Engine Issues
Material cannot be set in MaterialInterface of NiagaraParameterCollection
UE - Niagara - Apr 16, 2021When MaterialInterface is added to UserParameter of NiagaraSystem, Material can be set in Properties. Also, in UE4main CL15988344, there is no MaterialInterface item in the NiagaraParameterCollecti ...
'recompileshaders changed' doesn't work
UE - Graphics Features - May 7, 2021The issue is already fixed in UE5 by CL 14368553. This Jira is created for cherrypick into UE4 ...
Crash in FMacApplication::FindScreenByCocoaPosition when using the mouse in the ILIAD plugin.
UE - Platform - Apple - Aug 18, 2021I think this could occur anytime but is probably very rare. However using this plugin from the reported UDN makes it much easier to repro as they are calling FMacApplication::ConvertCocoaPositionTo ...
[CrashReport] UE4Editor-MovieSceneTracks!UMovieSceneComponentMobilitySystem::RestorePreAnimatedState
UE - Anim - Sequencer - Sep 13, 2021[CrashReport] UE4Editor-MovieSceneTracks!UMovieSceneComponentMobilitySystem::RestorePreAnimatedState(IMovieScenePreAnimatedStateSystemInterface::FPreAnimationParameters const &) [MovieSceneComponent ...
Timelines do not parse "," in numeric fields the same as the rest of the editor
UE - Editor - Oct 23, 2023GPU Crash may occur when using Nanite Tesselation on landscape with several shadow casting local lights
UE - Graphics Features - Nanite - May 5, 2025The GPU may time out in NaniteSplit when drawing VSM shadows for Nanite Tessellated landscape with in a scene with several local shadowed point lights. The issue doesn't reproduce in 5.6, likely to ...
Applying downscale causes textures to display unexpectedly on widgets
UE - Editor - UI Systems - Slate - Sep 22, 2025When applying downScale 2.0 to UI textures to reduce resolution, unintended display issues occur on widgets, such as: ・The border of box-shaped Widgets with DrawAs set to “Box” becomes thinner ・Dot ...
Scene Capture 2Ds Ignore Separate Translucency Settings
UE - Graphics Features - Jun 3, 2015When you place a Mesh with a Translucent Material using Separate Translucency in the view of a Scene Capture 2D using Gaussian DoF, the resultant capture will ignore the Separate Translucency Settin ...
SetTextureParameterValue stopped working with Dynamic Material Instances (from Blueprints)
UE - Graphics Features - Mar 28, 2016Textures in Post Process Blueprints do not update with Dynamic Material Instances. Scalar and Vector Parameters update as expected, but Textures do not. Note This was attempted with both a materi ...
Converting Int to Byte to Enum crashes editor during PIE
UE - Gameplay - Blueprint - Jan 28, 2016Converting Int to Byte to Enum crashes editor during PIE. Frequency: 3/3 Crashreporter: N/A ...