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 ...
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. ...
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 ...
Keep Simulation Changes Not Saving Values After Physics Simulation
UE - Gameplay - Blueprint - Oct 1, 2015Simulating your level and then attempting to use the Keep Simulation Changes option on an actor that has simulated physics gives the No Properties Copied error. Occurs in 4.9.2 binary and Main CL ...
NavMesh Not Updating When Collision is Manually Added to/Removed From a Static Mesh
UE - AI - Nov 9, 2015When you add or remove collision manually, the NavMesh will not update, even after rebuilding paths. The only way to get the NavMesh to update when collision is changed manually is to restart the ed ...
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. ...