Unreal Engine Issues
Unreal Engine Issues
Changing the “DistanceField Trace Distance” requires rebuilding the lightmaps
UE - Graphics Features - Feb 18, 2025Changing the “DistanceField Trace Distance” requires rebuilding the lightmaps even though the valu never affect light baking process in Lightmass. ...
Video material broken on Mac M3+ (sm6)
TM - Rendering - Oct 21, 2025On Mac devices, the video material in the viewport will display incorrectly, appearing stretched significantly. This only seems to affect the viewport and not rendered exports. ...
Interchange Runtime .glb Import Crash When Packaged
UE - Editor - Content Pipeline - glTF - Jun 10, 2025The runtime import process works fine in editor, but fatal error when trying to do so with packaged build of project. My function that calls ImportAsset():bool UMeshLoader::RequestMeshLoad(FString ...
Niagara and Groom causes exception crash on Launch when using
UE - Simulation - Physics - Mar 2, 2020Trying a Launch after every step shows that the problem occurs as soon as the GroomAssetSystem is added to Niagara. If the GroomAssetSystem is removed, the game launches fine (but the hair doesn't m ...
BlueprintNativeEvents with no return value (void) cannot be overridden in Blueprints.
UE - Gameplay - Blueprint - Dec 22, 2014BlueprintNativeEvents (and BlueprintImplementableEvents) are not available to be overridden in a Blueprint Graph if they do not return a value. This affects both functions present in source code, as ...
Steering feels sluggish in VehicleGame
UE - Simulation - Physics - Dec 22, 2016REGRESSION Yes, does not occur in 4.14.2. Steering in Vehicle Game feels very sluggish. Turning is slow, and the buggy loses a lot of acceleration. ...
Cannot delete Notifies from Anim Notify Manager
OLD - Anim - Jan 4, 2017Cannot delete Notifies from Anim Notify Manager. Regression: YES Broken: 3224400 (4.14.1) Worked: 3172292 (4.13.2) ...
Crash after entering DebugCreatePlayer console command on Sierra Mac in -game
UE - Graphics Features - Jan 18, 2017This is a regression from 4.14.3 This crash does NOT occur in PIE or Standalone Game This does not occur on an El Capitan 10.11.6 MacbookPro or on Windows. ...
No additional ticks appear on the timeline when you zoom in
OLD - Anim - Jan 26, 2017No additional ticks appear on the timeline when you zoom in Regression: YES Worked: 3172292 (4.13.2) Broken: 3249277 (4.14.3) ...
Animations don't respect Restore State when they are part of a Shot/SubSequence
UE - Anim - Sequencer - May 25, 2017Animations don't respect Restore State when they are part of a Shot/SubSequence Regression: YES Broken: 4.15 (3450819) Worked: 4.14 (3249277) ...