Unreal Engine Issues
Unreal Engine Issues
Crash in FPBDJointUtilities::ConditionInverseMassAndInertia
UE - Simulation - Physics - Solver - Aug 8, 2024We seem to be setting the InverseInertia to zero, even though the InverseMass is non-zero. FPBDJointUtilities::ConditionInverseMassAndInertia assumes that the inverse inertia is only zero if the in ...
Modifying PostProcess Film Slope can cause TSR to produce ghosting artefacts
UE - Graphics Features - Aug 11, 2025When TSR is active, the scene is dark, and a foreground object is lit, modifying the Film/Slope value on a PostProcessVolume can lead to TSR ghosting. TSR occurs prior to Tonemapping, so the issue ...
Clearcoat shader disappears if any asset using the Material leaves lighting
UE - Graphics Features - Aug 19, 2015Clearcoat Shader will stop receiving lighting information if any mesh assigned the material using the shader leaves lighting. Also Reproduced in Launcher 4.9 Preview 4, Main-CL-2660934 [Image Remo ...
German keyboard layout does not recognize the keys ö,ü,^ in editor
Tools - May 12, 2015ö,ü,^ keys are not recognized on keyboards with a german QWERTZ layout in editor. ...
Pose assets do not snap to the pose when Additive is disabled
OLD - Anim - Oct 24, 2016This is a regression from 4.13.1 as it was snapping to the pose then. If this was an intentional change please let us know and we can update the test case to reflect this. ...
OSVR does not consistently render to HMD if OSVR Server is not open prior to opening editor/cooked game
UE - Platform - XR - May 18, 2016It seems like if OSVR_Server is not launched prior to opening the editor, vr-preview functionality will not work (even though the editor starts OSVR_Server at launch). Seems like server must be open ...
Separate Fill Alpha does not work on font outlines when outline size is set to 1
UE - Editor - UI Systems - Slate - Jan 16, 2017Font outlines render underneath the text, meaning that partially transparent text will allow the outline color to show through. This can be avoided by enabling Separate Fill Alpha. However, that opt ...
Console command "setMouseSensitivity" locks mouse movement to the X axis
Tools - Dec 3, 2018Using the console to set mouse sensitivity locks mouse movement to the X axis. ...
The Percentage doesn't work with sheared ProgressBar Widget
UE - Editor - UI Systems - Jun 24, 2019Translating the shear of Progress widget on the -Y causes the percent bar to not move correctly. Tested in 4.22.3 (CL - 7053642), 4.23 (CL - 7173969), 4.24 (CL - 7032890) ...
Deferred Decals Fade In With No Fade Duration Set
UE - Graphics Features - Aug 9, 2019Decals fading in with Fade Duration set to zero. Found in 4.21 CL# 4753647, 4.22 CL# 7053642, 4.23 Preview 5 CL# 7838574 ...