Unreal Engine Issues
Unreal Engine Issues
Lumen doesn't use correct sky light settings when GI scalability changes from Low to High
UE - Graphics Features - Lumen - Sep 24, 2024When the Global Illumination scalability settings are changed in the editor from High to Medium, they primarily act on the r.Lumen.DiffuseIndirect.Allow and r.SkyLight.RealTimeReflectionCapture. No ...
Interchange Framework - Missing References on Animation Import with Python Pipelines
UE - Editor - Content Pipeline - Import and Export - Jun 10, 2025Hello, I'm using Interchange in a UE5.5.4 project with my Pipeline Stack containing a copy of the DefaultAssetPipeline and a custom Python Pipeline. When importing my Animation with only the Defau ...
Skeletal mesh defined in code cannot be set in the editor.
UE - Gameplay - Blueprint - Apr 16, 2015Defining a skeletal mesh component in code and attaching it to the root component will not allow the component's details to be editable inside the editor. ...
Physics object set to OverlapAll will still collide with the player
UE - Gameplay - Aug 24, 2015Physics object set to OverlapAll will still collide with the player User Description: The pawn is simply colliding with and causing physics on objects it shouldn't be. To replicate: Set up a new ...
Mouse Position doesn't properly update on tick when framerate is low in standalone game
UE - Editor - UI Systems - Slate - Dec 11, 2015If a game is run in the standalone editor and the FPS drops to ~20-30 FPS, pressing an event such as LMB and returning the mouse position on tick will cause the tick to jump inconsistently. Note: ...
Get World Delta Seconds Not Pausing When Hitting a Breakpoint
UE - Gameplay - Blueprint - Feb 11, 2016When debugging a blueprint using breakpoints, if you click the Resume button while you have Get World Delta Seconds running on tick, it will always return a maximum clamped value of .4 seconds (or l ...
An Actor Reference will reset to a None when referencing a ChildActor
UE - Gameplay - Feb 11, 2016A blueprint with an Actor Reference will reset to a None value on compile or stopping PIE User Description: We have come across a bug with the editor regarding setting direct references to child a ...
Blending Animations between Third Person Project and Animation Starter Pack results in "dipping below floor level"
Docs - Samples - Aug 5, 2015A number of users have reported that blending animations between Third Person Project and Animation Starter Pack results in a "dipping below floor level" between the two animations. The cause of th ...
Editor crash when spawning/cloning a static mesh actor
UE - Gameplay - Sep 10, 2015Setting a FActorSpawnParameters' variable's Template to "this" and then spawning an instance of the static mesh actor using the parameter causes the editor to crash. ...
Engine Crash When Enabling Distance Field Global Illumination and Opening TM-LightingFeatures
UE - Graphics Features - Jan 11, 2017I was able to open the level once and after a few seconds of being opened the editor crashed while compiling shaders and generating mesh distance fields. Since then I have not been able to open th ...