Unreal Engine Issues
Unreal Engine Issues
Physics Constraint no longer constrains components that are set to Query Only
UE - Gameplay - May 5, 2016Physics Constraint no longer constrains conponents that are set to Query Only Regression from 4.11.2 User Description: Testing a 4.12 copy of my 4.11 project and when I tested in editor, all my ...
Image widget does not scale the inner borders correctly
UE - Editor - UI Systems - Oct 24, 2014When Scaling in and out in the UMG blueprints with an image applied to an image widget that is set to border as it's "Draw as" selection the image does not scale correctly. EDIT: The UI should prev ...
Lack of multi-bounce when using software traced lumen radiosity
UE - Graphics Features - Lumen - Apr 4, 2025Certain Lumen Hardware Ray Tracing CVars, when disabled in isolation, will not fall back to tracing the Global Distance Field, because the Global Distance Field is still disabled. The function "Lum ...
Assigning a static mesh to a Mutable Clip Mesh With Mesh Node can crash the editor
UE - Anim - Mutable - Jul 4, 2025Context: The Mutable plugin has a modifier node called Clip Mesh With Mesh that allows Static Mesh modifiers to be assigned as the clip mesh. Under certain circumstances, an assert can be triggered ...
Simulate Physics with Destructible that is using World Support can't be enabled after it's been hit.
UE - Simulation - Physics - Destruction - Apr 22, 2015When using a Destructible with World Support set simulate physics can be enabled so long as the DM has not been hit yet. Once it's been hit it no long is able to be set to simulate. ...
Camera behavior mismatch between PIE vs Packaged game
UE - Gameplay - Feb 19, 2015When a camera is setup in code with GetWorld()->GetFirstPlayerController()->SetViewTarget(this); the camera will work in the editor but a packaged version of the game has a black screen. ...
Setting linear dampening during runtime via the event graph does not work for separated chunks
UE - Simulation - Physics - Destruction - Dec 18, 2014DESCRIPTION: When using a DM in blueprints and setting the linear dampening in the event graph the DM will honor the linear dampening but the chunks as they break off will not. Setting the mesh to ...
Extremely long Spline Point will cause the editor to lose FPS
Tools - Nov 13, 2015Extremely long Spline Point will cause the editor to lose FPS and crash some machines User Description: A couple of times I've accidentally scaled a spline node to be huge, causing the spline to ...
BP with Show 3D Widget enabled does not display the correct vector values in the bp editor
UE - Gameplay - Blueprint - Apr 7, 2015BP with Show 3D Widget enabled does not display the correct vector values in the bp editor. Note: If you don't see a difference at first, delete the bp in the level and place it again. The widge ...
Blueprint parameter of a function call will break on reload of the editor
UE - Gameplay - Blueprint - Jun 8, 2015When using a code created function call inside of a blueprint that takes in a pointer to a UBlueprint as a paramter the pin for setting the desired blueprint will cause a compile error when the edit ...