Unreal Engine Issues
Unreal Engine Issues
It is not possible to export virtual layer masks (AI or from mesh) through the COLMAP exporter.
RS - MVS - Jan 8, 2026Found in 2.1.0.119011 (R210). The mask export doesn't work even when the masks are regenerated from the mesh. Outcome: Error appears: "The filename, directory, or volume label syntax is incorrect ...
AddTimedDisplay causes crash when changing level
UE - Gameplay - Dec 8, 2022RemoveAfterSecondsLambda in AddTimedDisplay function may access released memory during level transitions. The following workaround works : void UViewportStatsSubsystem::AddTimedDisplay(FText Text, ...
Slate Post Buffer does not work correctly when changing Default Back Buffer Pixel Format
UE - Editor - UI Systems - Slate - May 20, 2024Buffer Visualization for DecalMask is missing
UE - Graphics Features - Feb 29, 2016The Buffer Visualization for DecalMask is no longer an option. Also, when looking at the Buffer Visualization Overview the DecalMask slot has been removed. See attached image for comparison Worke ...
Crash when TSR history separate translucency enabled
UE - Graphics Features - Mar 1, 2023Custom Events can't be called after changing level blueprint or switching maps
UE - Gameplay - Blueprint - Dec 23, 2014Custom events cannot be called as functions after being made in level blueprints or after changing levels. User must close and re-open editor to be able to call a custom event. ...
The Show Collision option in the Viewport does not show all collision during Simulate
UE - Simulation - Physics - Jan 30, 2015The Show Collision option in the Viewport does not show all collision during Simulate. ...
Some post processing features in Preview Scene Settings do not update immediately
UE - Gameplay - Jul 28, 2016In Persona or the Static Mesh Editor, some post processing features do not update immediately when the user changes them. This was seen with Color Grading and Lens Flare settings. It could affect ...
Screen goes black if standalone window loses/regains focus in Oculus Mode
UE - Platform - XR - Dec 10, 2014If the console command "Stereo on" is used to enter Oculus mode in a standalone window, the onscreen window and Oculus viewport go black if the standalone loses window focus. Window is still runnin ...
SEGV_NOOP at 0x0
UE - Platform - Apple - Jul 7, 2015Crash Report: [Link Removed] *Crash Report attached User reports, "Launch[ing] Unreal Engine 4.8.1 from Epic Games Launcher, UE4 splash screen will come up and after 80% of initialization; UE4edit ...