Unreal Engine Issues
Unreal Engine Issues
AnimDrawDebug does not work if using RootMotion from Everything
UE - Anim - Gameplay - Feb 14, 2023Debug drawing with AnimDarwDebug~ does not work when RootMotionMode is set to "RootMotion from Everything". In addition, the same issue occurs when MultiThread of Animation is turned off. Licensee ...
XR Planar Reflections lag behind VR headset movement
UE - Platform - XR - Mar 24, 2023Planar Reflections lag behind VR headset movement [Link Removed] Reporting that reflection captures lag because they happen before late update is applied. Includes an experimental patch that fi ...
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 ...
Importing static mesh while a PIE session is running permanently breaks nanite on the asset
UE - Editor - Content Pipeline - Import and Export - Mar 12, 2025Importing a Static Mesh during PIE can cause it to never enable Nanite, even if it reports that Nanite is enabled. To re-enable Nanite on the mesh, the asset needs to be deleted and imported again ...
When using a NavModifier with a NavBoundsVolume being in a SubLevel, unloading the level causes a crash.
UE - AI - Jul 19, 2018When repeatedly loading and unloading sublevels with a NavBoundsVolume, it will cause a crash when using a NavModifierVolume. When the NavMesh is unloaded, it seems that the number of the DirtyLayer ...
Projects crash on Android when trying to load mips
UE - Platform - Mobile - Jan 20, 2017Projects that are deployed in the Debug configuration crash when trying to load mips on the Android device. I do not see this issue when launching a project onto Android using the Test configuratio ...
Project crashes when auto save completes after copy/pasting emitters multiple times in a system
UE - Niagara - Aug 2, 2018Project crashes when auto save completes after copy/pasting emitters multiple times in a system Encountered same crash testing Blend_Attributes_System and ExpressionsExample_System. Doesn't seem to ...
'Get Distance Along Spline At Spline Point' Causes Crash
Tools - Jul 28, 2018User reports that the reason for the crash is that because UpdateSpline is false on the AddSplinePointAtIndex blueprint node, this line is never called [ReparamTable.Points.Reset(NumSegments * Repar ...
4.7 Regression: Character::OnJumped_Implementation() not virtual and will skip user implementation or fail to compile
UE - Gameplay - Feb 25, 2015Character::OnJumped_Implementation() should be virtual or users' custom implementations will not be called. If they declare it with "override" their code will fail to compile. Already fixed in Main ...
Media Player Asset not Playing in Packaged Game
Media Framework - Jun 22, 2016Media asset fails to play in packaged game. There was a bug entered [Link Removed] which is similar, but dealt with standalone play mode as well. The standalone issue seems to have been fixed since ...