Unreal Engine Issues
Unreal Engine Issues
Animation retargeting adversely affects looping animations
OLD - Anim - Nov 21, 2014Retargeting a skeleton to a looping animation results in the animation skipping at the end of the loop (Appears to miss 1 or 2 frames.) ...
Circular Throbber does not appear to be affected when setting the tint
UE - Editor - UI Systems - Jan 25, 2016Circular throbber does not appear to change colors when changing the tint ...
RootMotion travel distance get affected by ForceAnimRate
OLD - Anim - Nov 24, 2016A root motion controlled character would travel further than they should when both EnableUpdateRateOptimizations is on and a.URO.ForceAnimRate is set above 1. Changing "Root Motion from Montages On ...
Collision Viewmodes do not affect Instanced Meshes properly
UE - Graphics Features - Apr 9, 2018Collision View modes, such as Player Collision and Visibility Collision, do not work with Instanced Static Meshes. Regression?: No This also occurred in 4.18 ...
C4D Mograph not working in 4.24.0
UE - Editor - Content Pipeline - Datasmith - Importer - Dec 16, 2019A customer is reporting that C4D mograph support is broken in version 4.24. C4D file added under [Link Removed] folder in: [Link Removed] ...
Negative scale with non 0 rotation doesn't work.
UE - Simulation - Physics - Jul 28, 2020HeaderMarkForPacketInfo.GetNumBits() == 0 when closing NetConnection during Tick
UE - Networking - May 12, 2021Licensee reported getting this error on PS4 after losing internet connection or putting the console into rest mode. See linked UDN for callstack. The NetConnection calls Close during its Tick, due ...
LevelSnapshots affect level visibility when restoring snapshot
UE - Virtual Production - Tools - Level Snapshots - Nov 2, 2023Slack thread [Link Removed] ...
[CrashReport] UE4Editor_SequenceRecorder!FAnimationRecorder::Record() [animationrecorder.cpp:616]
UE - Anim - Sequencer - Aug 22, 2017According to CrashReporter there is both an Ensure and a Crash that occur with this callstack. The error message for the Ensure is Ensure condition failed: UIDList == AnimationCurves.UIDList [File:D ...
[Mobile/Forward Rendering] PlanarReflection does not work when the reflection plane faces certain directions
UE - Platform - Mobile - Sep 24, 2025Note: This repros on 4.27 and all 5.x versions. When using the mobile renderer and/or forward shading, Planar Reflection will simply not work if the reflection plane normal has components that add ...