Unreal Engine Issues
Unreal Engine Issues
Motion Matching FPS instability causes jittering when using the root offset node
UE - MVF Character - Animation - Feb 23, 2026Offset root node is affected by frame rate and produces jitter in it's motion across various settings and styles. ...
Property Editors fail to select assets within paths containing valid non-alphanumeric characters
UE - Editor - Verse Class Editor - Sep 20, 2024Property Editors for asset types allow you to drag assets from the Content Browser into them, or to make a selection using an Asset Picker widget. Some examples would be selecting Static Meshes or M ...
In the level editor, when configuring a component that is part of an actor blueprint, adding entries to a TMap with C++ enum keys results in duplicate keys and an incorrect warning popup.
UE - Editor - Jan 22, 2026Note: This started happening in UE 5.4 and persists up to latest. It is probably related to [Link Removed] Closed ([Link Re ...
Adding specific map to project crashes editor
UE - Gameplay - Dec 23, 2015Adding map from user's project, CityofEther.umap, crashes editor upon launch or attempting to open the map. Crashreporter: [Link Removed] ...
Crash upon launching packaged game with nativized blueprints that include Add Child Actor Component node with a class already set
UE - Gameplay - Blueprint - Jun 14, 2017When using the Add Child Actor Component node with a class set on the node with Blueprint Nativization enabled, the packaged game crashes upon launch. A workaround for this is to leave the class bla ...
Cannot animate properties on Root UMG element.
UE - Editor - UI Systems - Apr 17, 2015The UI tells me I can do it, but I cannot. Current work-around is to insert an extra element. Not desirable. [image: Inline image 1] ...
Realtime rendering gets disabled when simulating in editor
Tools - Oct 18, 2016Realtime rendering gets disabled every time you simulate in the editor This does not occur in Main and is a regression from 4.13.2 ...
Spatialization is inaccurate on iOS/tvOS
UE - Audio - May 9, 2017Also occurs in 4.16 Tested on iPhone6S+_4982 OS: 10.2.1 and tvOS 10.2 ...
Automotive Photo Studio Template project renders custom render passes incorrectly
UE - Editor - Content Pipeline - Datasmith - Importer - Dec 19, 2019Renders with a custom render pass from the level in the Automotive Photo Studio Template are incorrect. They appear to be affected by auto exposure. ...
Shader Complexity not working correctly on Deferred Decals
UE - Rendering - Features - Sep 3, 2020If you place a deferred decal in the world and then set the view mode of the viewport to "Shader Complexity", the decal doesn't affect the complexity value. ...