Unreal Engine Issues
Unreal Engine Issues
Child Animation Blueprints Do Not Get Recompiled Correctly
UE - Gameplay - Jan 7, 2020The child of an animation blueprint is not properly recompiled when the it's parent is compiled. Found in 4.24.1 CL#10757647 ...
[MetaSounds][Ladder Filter] - Ladder Filter Produces Incorrect Output when the Sample Rate is not 48kHz
UE - Audio - MetaSounds - Oct 30, 2023When the Sample Rate of the Audio Mixer or device is not 48kHz, the Ladder Filter output is not correct on PIE. It is Silent at 20000Hz, and other frequencies also sound wrong. ...
[MetaSounds][Biquad Filter] - Biquad Filter Produces Incorrect Output when the Sample Rate is not 48kHz
UE - Audio - MetaSounds - Oct 30, 2023When the Sample Rate of the Audio Mixer or device is not 48kHz, the Biquad Filter output is not correct on PIE. It is Silent at 20000Hz, and other frequencies also sound wrong. See [Link Removed] ...
Arrays in UMaterialEditorInstanceConstant are not updated
UE - Rendering Architecture - Materials - Jun 13, 2025Any UPROPERTY TArray added to UMaterialEditorInstanceConstant will not cause UI updates when elements are added or removed. This is caused by the custom validator created in FMaterialInstanceEditor ...
Extending Montage Segment length causes length to reset to default in new Editor Session
OLD - Anim - Jan 4, 2016Licensee is encountering an issue where they would like a segment of a montage to end and hold the last frame for the remainder of the segment length. He is doing this by adjusting the End Time und ...
After changing Slot Name field, Slot node does not update until you re-open the AnimBP
OLD - Anim - Jun 9, 2015After changing the Slot Name field, the Slot node does not update with the new name until you close and re-open the Animation Blueprint ...
Live: Crash when opening a blueprint who's component was edited in VS
UE - Gameplay - Blueprint - Oct 31, 2014Added functionality to a blueprint component through code and built the project in VS. After a hot reload, I saved the blueprint and closed the editor. Reopening the editor and the blueprint cause ...
Sweep on Set Actor Location is ignored for all components that aren't the Blueprint's root
UE - Gameplay - May 28, 2015Sweep on Set Actor Location is ignored for all components that aren't the Blueprint's root. Reproduced in 4.7.6 and Main (//depot/UE4/Promotable-CL-2568226) ...
Stat FPS will freeze a project when packaged for shipping
UE - Foundation - Core - Mar 31, 2015If you have an Execute Console Command node in your level blueprint with a pressed key executable node, The project will freeze if packaged for shipping when 'Stat FPS' in in the Command box. Test ...
The Child Actor Component cannot be selected in the Blueprint Editor Viewport
UE - Gameplay - Jun 8, 2015The Child Actor Component cannot be selected in the Blueprint Editor Viewport. Selecting the Child Actor Component in the Components tab is the only way to select the component. Reproduced in 4.7.6 ...