Unreal Engine Issues
Unreal Engine Issues
Changing the engine quality settings will cause the editor to crash
UE - Graphics Features - Feb 27, 2020Changing the engine quality settings to low or medium will cause the editor to crash This was tested in 4.24.3 @ CL 11590231 and doesn't occur, so this is marked as a regression. Mac Environme ...
IsOverlappingActor is always returning false
UE - Gameplay - Sep 23, 2015When you use the IsOverlappingActor node to determine whether or not something is overlapping another actor, it returns false regardless of whether or not you're actually overlapping another actor. ...
Adding impulse to a Static Mesh Component that is not the root of an Actor Blueprint does not replicate movement to the Client
UE - Networking - May 19, 2015Adding impulse to a Static Mesh Component that is not the root of an Actor Blueprint does not replicate movement to the Client. Reproduced in 4.7.6, 4.8 Preview 3, and Main (//depot/UE4/Promotable- ...
XR Planar Reflections lag behind VR headset movement
UE - Platform - XR - Mar 24, 2023Planar Reflections lag behind VR headset movement [Link Removed] Reporting that reflection captures lag because they happen before late update is applied. Includes an experimental patch that fi ...
Print String does not print to the viewport screen from the Construction Script
UE - Gameplay - Blueprint - Aug 11, 2015Print String does not print to the viewport screen from the Construction Script, even if Print to Screen is enabled in the Print String node. Reproduced in 4.7.6 binary, 4.9 Preview 3, and Main (/ ...
Deploying a project with Portrait orientation will appear stretched on the Nvidia Shield Tablet
UE - Platform - Mobile - Mar 3, 2015When I deployed a first person template project to an Nvidia Shield Tablet with Portrait Orientation enabled, The screen appeared stretched and the analog stick were unable to be used. Tested on t ...
Delete Unused Variables Does Not Remove Local Variables
UE - Gameplay - Blueprint - Oct 13, 2015Using the Delete Unused Variables option under the Edit tab of a blueprint does not remove local variables. Instead, it displays a "All variables are in use" error. Occurs in 4.9.2 and 4.8.3 binar ...
C# UHT fails to recognize delegates declared in another class's namespace
UE - Foundation - Cpp Tools - UnrealHeaderTool - Dec 14, 2022Repro Rate: 3/3 This issue occurs in the live build //UE5/Release-5.1 at CL 23058290. This issue has also been regression tested against //UE5/Release-5.0 at CL 20979098 and is confirmed to be a r ...
Crash when clicking "Reset to Default" button on the Details Panel for the MaterialAttributeLayers material node.
UE - Rendering Architecture - Materials - Jul 15, 2025This crash repros from at least UE 5.3 and up to latest. The following assert is hit: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 1067] Array index out of bounds: 0 in ...
WorldSettings Blueprint crashes editor when saved/compiled
UE - Gameplay - Blueprint - Feb 12, 2019Making a Blueprint instance of the AWorldSettings class, then saving/compiling instance Tested in 4.20.3 (CL - 4369336), 4.21.2 (CL - 4753647), 4.22 (CL - 4958363) ...