Unreal Engine Issues
Unreal Engine Issues
MRQ reports missing frames when rendering multiple cameras on a Sequencer camera track with Temporal Sample Count > 1
UE - CAPT - Color Pipeline and Rendering - MRQ - Feb 2, 2026If there are multiple cameras in the Sequencer camera track, everything works correctly when the Temporal Sample Count for anti-aliasing is set to 1. However, when it is set to 3, the following erro ...
Setting scale to 0 in any direction breaks overlap events
UE - Simulation - Physics - May 26, 2015When the scale of an actor is set to 0 in either X, Y or Z any overlap events will fail to trigger overlap events. ...
Navmesh does not update properly on loaded BSP
UE - AI - Oct 20, 2014If a user removes a wall or box from the top down project base level, the navmesh will not update appropriately, creating a wall that the user will not be able to pass on PIE. Additional Note: Thi ...
[MAC][OPENGL][METAL]: Investigate why planar reflections on translucent surfaces may not be working
Tools - Jun 29, 2015See Comments. User reported planar reflections aren't being applied to translucent materials on Mac OpenGL, which may also affect Linux OpenGL and Mac Metal. Need to investigate what this feature r ...
[Mac][Metal] Black/NaN spots Visible in Templates With r.BasePassOutputsVelocity
UE - Platform - Apple - Apr 15, 2016Base-pass rendering on Mac Metal now generates transient black/Nan spots across the scene - this appears to be related to r.BasePassOutputsVelocity and is presumably the connected to the incorrect s ...
Duplicating a Timeline from the MyBlueprint tab creates a Timeline variable with no actual Timeline which cannot be renamed
UE - Gameplay - Blueprint - Jan 10, 2015Duplicating a Timeline from the MyBlueprint tab (instead of duplicating it in the Graph) creates a Timeline variable with no actual Timeline to edit. It is only possible to Set or Get this variable. ...
Duplicating a level duplicates any Child Actor components of Blueprint Actors in the original level
UE - Gameplay - Aug 6, 2015Duplicating a level duplicates any Child Actor components of Blueprint Actors in the original level. Reproduced in 4.8.3 binary and Main (//depot/UE4/Promotable-CL-2635815) ...
Show Navigation does not work in a packaged build
UE - AI - Mar 9, 2015USER DESCRIPTION: Every time I check "Enable Drawing" in project settings, save all, close the editor then open it again -> Enable Drawing is unchecked. Why? Is there some other place when this opti ...
Linux Slate Dialogs tga files do not have an image icon
UE - Platform - Linux - Jan 8, 2016TGA files do not have an image icon like the JPG files do in the Slate Dialogs in Linux. ...
Crash While Compiling Blueprint in FBlueprintEditorUtils::RefreshExternalBlueprintDependencyNodes()
UE - Gameplay - Blueprint - Jun 7, 2016Having an actor blueprint (A) that contains an array variable of references to another actor (B) that is connected to a Length node and a Vector array that is connected to a ForEachLoop causes bluep ...