Unreal Engine Issues
Unreal Engine Issues
Perforce Version Control visually appears to allow deletion of locked files in Content Browser
UE - Editor - Workflow Systems - Nov 23, 2022Repro Rate: 3/3 This issue was reproduced in //UE5/Release-5.1 at CL 23058290. This is confirmed to not be a regression since the error also occurs on the previous live version. This is regression ...
Using "Watch This Value" on Pawn causes memory leak
UE - Gameplay - Blueprint Editor - Dec 1, 2022Reproduced 3/3 times, issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. No memory leak occurs when watching a new blank Actor BP, which implies the root cause ...
Dark square appears in hair in direction of spotlight when shadows disabled
UE - Graphics Features - Sep 18, 2024A dark square appears in the direction of a spotlight on hair when the spotlight has no shadow. [Image Removed] In UE 5.4 the dark square is visible when the spotlight has no shadow, and a light s ...
No warnings or errors if a UEnum has Bitflags metadata, but no Flags flag.
UE - Framework - Blueprint Compiler - Jan 29, 2025The problem here isn't obvious: the native enum, EAnotherEnum, is missing the Flags flag for the UEnum. As a result, K2Node_GetEnumeratorNameAsString returns the max enum when it gets a combined fla ...
Additives using Frame From This Animation as the Base Pose Type fail to retarget correctly
UE - Anim - Rigging - Retargeting - Feb 13, 2025Additive animations that use a frame from their own sequence as a base pose are initially broken when retargeted. Users have to refresh the properties that select the base pose in order to fix the ...
Enabling Wireframe Mode along with HDR (EyeAdaptation) Visualization crashes the Editor
UE - Graphics Features - May 29, 2025In the Viewport, enabling Wireframe Mode (ALT+2) along with HDR (EyeAdaptation) Visualization crashes the Editor. I've tested different versions and this issue is not present on 5.0, but it reproduc ...
Actors transforms broken in cooked builds when their parent is an IsEditorOnlyActor
UE - Gameplay - Oct 7, 2025When creating a hierarchy of Actors in the Outliner, the transform of the "child" actors will be reset if their Parent's IsEditorOnlyActor property is true. The project in the EPS case is using ...
Crash upon opening a level that is parented to a Custom Level Script
UE - Gameplay - Blueprint - Jul 30, 2015The attached project will crash whenever attempting to load the default map which is parented to a custom level script made by the user. Note: This issue doesn't occur for all maps in the project. ...
Vulkan crash on Android when suspending and resuming app
UE - Platform - Mobile - Sep 27, 2016Custom Output node added to a Material Editor Crashes Editor
UE - Graphics Features - Jun 16, 2015Adding a Custom Output node to a Material Graph crashes the editor. Also Reproduced in Main Promotable-CL-2581018 [Link Removed] ...