Unreal Engine Issues
Unreal Engine Issues
Nanite Mesh Dither Opacity Mask Not Working in 5.6.0
UE - Graphics Features - Nanite - Jul 30, 2025In Unreal Engine 5.5.4, the Dither Opacity Mask option in a Masked material works correctly on Nanite meshes. However, in version 5.6.0, the dithering effect no longer applies to Nanite meshes. ...
Capsule component Shape values can be glitched inside of Actor class bp
UE - Gameplay - Components - Oct 29, 2015Capsule component Shape values can be glitched inside of Actor class bp This effects 4.9.2 and 4.10 Preview 3, however it is working properly in 4.11-2736016 User Description: Alright, so the Cap ...
Generated definition of BlueprintNativeEvent UFUNCTION in an interface does not include const keyword for return type
UE - Foundation - Core - Aug 15, 2018UHT does not correctly create generated code for BlueprintNativeEvent UFUNCTIONs in an interface that return const values. In the corresponding .gen.cpp file, the generated code does not include the ...
Selecting other components after selecting a Spline Component's control point keeps the transform gizmo and functionality at the Spline Control point
UE - Editor - Workflow Systems - May 3, 2022Selecting other components after selecting a Spline Component's control point keeps the transform gizmo and functionality at the Spline Control point Repro Rate: 4/4 Tested this in //UE4/Release-4 ...
Serialization to archive corrupts data
UE - Foundation - Core - Nov 16, 2015Values stored inside variables becomes corrupted after creating an FBufferArchive variable (FBufferVar), setting FBufferVar.ArForceByteSwapping = true; and then storing the original value in FBuffer ...
Iterative Cook does not only cook new content from Unreal Frontend
UE - Foundation - Core - Cooker - Jun 14, 2018Using iterative cooking should only cause new or changed content to be cooked but in the Unreal Frontend, content is cooked every time, despite nothing being added or edited. Logs from two subseque ...
Adding Variable to Struct (Exposed on Spawn) breaks SpawnActor functionality without error/warning
UE - Gameplay - Blueprint - Aug 16, 2018Adding a variable to a Struct used with SpawnActor breaks functionality without warning. Workaround: Clear Class from SpawnActor and reassign same class User Cites Blueprint Compile manager as fau ...
Lighting channels not working as expected when enabling Ray Tracing Shadow
UE - Graphics Features - Lumen - Oct 13, 2020Non-Ray Tracing Shadows are only cast from lights on meshes assigned to the same Lighting Channel. When enabling Ray Tracing Shadows this is not the case. Lights will still cast Ray Tracing Shadows ...
Empty Shot Track Breaks Camera Component tracks when using Camera Cut Track
UE - Anim - Sequencer - Aug 18, 2016Empty Shot Track Breaks Camera Component tracks when using Camera Cut Track ...
No shadow cast after Static Mesh Editor material assignment
UE - Editor - Content Pipeline - Datasmith - Importer - Apr 21, 2020This is a Rhino file. Shadows are not cast on the Static Mesh after materials are assigned in the Static Mesh Editor. This was reported and tested in 4.24.3 (CL-11590370). This was reproduced in 4. ...