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 - Virtual Production - Tools - 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 ...
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) ...
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. ...
Procedural Mesh generated on BeginPlay does not collide with sweep actors in a packaged game
UE - Gameplay - Nov 10, 2016If a Procedural Mesh is created on BeginPlay (at runtime) instead of in the Construction Script, collision with non-player objects does not register correctly in packaged or launched games. This wor ...
Plane constraints are stuck even when constrain to plane is turned off
UE - Gameplay - Blueprint - Jul 1, 2015Pawn Movements can be restricted to a specific plain, even if the planar constraints are turned off. ...
Start Up Movies Are not Playing for iOS Devices when using Launch-On
UE - Platform - Mobile - Dec 9, 2016When designating 3 Intro/Start Up movies to play back to back in the Project Settings of a mobile project, the user reports that they will play as expected for Android devices, but only one movie wi ...