Unreal Engine Issues

Crash when using a specific Component Mask with Material

This problem seems to stop at Check in HLSLMaterialTranslator.h. If the same value is entered in MCT_Float and MCT_Float4, it branches to True with IsIdentical, but it seems that a problem has occur ...

FBX export - BP StaticMesh Scales from Mesh Origin

Unexpected behaviour with meshes scaled via BP and exported via .fbx (.obj looks to function as expected) Confirmed in 4.22 Main CL 4648854 ...

Impossible to save assets after change in redirectors

One of our licensees pointed out this problem. I've tried all the common redirector problems (write / read permission, multiple instances of the editor, renaming the assets, running the commandle ...

Animation metadata with an instanced subobject will display "Multiple Values" for all fields when recompiled

Animation metadata doesn't seem to properly support metadata with instanced subobjects, and breaks upon recompile when the data is reserialized. This seems similar to [Link Removed] and the other is ...

FBX exporter, skletal mesh LOD will be export up to the first clothing section

Creating Anim Montage drops a frame(s)

When creating an animation montage, it appears that frames can be lost. ...

Sequencer:The Spawned AnimBP variable is not changed during the second play

The Spawned AnimBP variable is not changed during the second play. When changing Spawned AnimBP variables from Sequencer Track, the first change works correct. Second time, It can not be changed co ...

Removing instances from HISM using Sequence node for execution in Construction Script behaves differently than ISM

When using the Construction Script to remove instances with the Get Instances Overlapping Sphere function to get the references, the behavior of this functionality is different for ISM and HISM if a ...

Build Plugin process fails with null reference exception when building a plugin that has "Can Be Used With Unreal Header Tool" set to true

Trying to use UAT to build a plugin that has CanBeUsedWithUnrealHeaderTool set to true will fail due to a null reference exception (log from Main CL 4666322 attached). This happens because the plugi ...

WMR: Crash in VR Edit Mode

Editor crashes when entering VR Edit Mode with WMR HMD ...