Renaming a Struct variable that is used in a Widget BP creates 'Warning: Unknown property in' warnings in the Output Log

UE - Gameplay - Blueprint - Apr 27, 2016

Renaming a Struct variable that is used in a Widget BP creates 'Warning: Unknown property in' warnings in the Output Log User Description: I think this should be brought up as these seems to be a ...

Editor crash loading a Blueprint asset when a child scene component C++ type changes to a non-scene component type.

UE - Gameplay - Blueprint Editor - Jan 16, 2019

Changing the type of an existing child scene component to be a non-scene component type triggers some fixup code at load time which attempts to remove the node from its current position in the scene ...

Perforce integration creates bad changelist

Tools - May 14, 2019

Perforce integration creates bad changelist when deleting or renaming a file, then renaming another into its place ...

Local binary build fails with iOS platform included

UE - Foundation - Cpp Tools - Sep 26, 2018

This report is very similar to [Link Removed] (the command line used to run the build is slightly different), but the build fails with a different error. In this case, a source file is being looked ...

"Select New Skeleton" window appears behind editor and gives error

OLD - Anim - Apr 21, 2015

When you select an asset that references a skeleton that has moved, the editor asks you to choose a new skeleton. When you choose Yes is it gives the message "The Anim Blueprint could not be loaded ...

Landscape cooked heightmap and Physical Material mismatch

UE - LD & Modeling - Terrain - Landscape - Jun 19, 2015

Several users have reported crashes where the Heightfeild loaded from the DDC and physical material list do not match. Suggest adding the number of physical materials to part of the cooked heightma ...

Tilemaps with masked materials respond to lighting at incorrect directions

UE - Gameplay - Paper2D - Nov 19, 2018

Tilemaps using lit methods of rendering are subject to strange lighting behavior. If the material for the tilemap is using a 'masked' method of rendering.  Lighting will appear at incorrect angles. ...

Memory Leak When Raytracing Enabled with Specific Rendering Settings

UE - Graphics Features - Ray Tracing - Apr 8, 2025

When a shipping build is packaged using specific rendering settings a memory leak can be observed. The licensee has noted that this leak presents as a 10MB per hour increase in RAM usage. It has a ...

Trace complex for assets simulating physics does not show accurate collision

UE - Gameplay - Apr 27, 2015

When using Trace Complex in a LineTraceByChannel node does not give accurate results when object is simulating physics and scaled. The scaled root mesh in the BP will only register its collision rat ...

Packaging for DLC with plugin multiple times causes failure due to file path length

When the DLC is being built for a project and stored in a plugin, the result is normaly until the DLC is packaged multiple times. This leads to the file path becoming more and more nested each time. ...