Unreal Engine Issues
Unreal Engine Issues
Duplicating a blueprint that implements an interface and then removing that interface will cause compile errors that don't occur if the interface was removed from the original BP
UE - Gameplay - Blueprint Editor - Aug 1, 2020See steps to reproduce. Looks like the fixup when saying Yes to "Would you like to transfer the interface functions to be part of your blueprint" doesn't work correctly on the duplicated BP. Inter ...
Reimporting sprite sheets does not work correctly if the editor has ever been closed and reopened since initial import
UE - Gameplay - Paper2D - Aug 1, 2020UPaperSprite::PostLoad() now sets BakedSourceTexture, BakedSourceUV, and BakedSourceDimension (if AtlasGroup is nullptr). There's nothing in reimport that sets them, so they are stale/latch to the ...
USD Stage window doesn't update when selecting other USDStageActors
UE - Editor - Content Pipeline - Import and Export - Jul 31, 2020Toggling between USD Stage Actors does not update the USD Stage window with the information from the selected USD Stage. Only the information from the last loaded USD Stage Actor is present. ...
Importing FBX file with same material slots and texture names has bugs
UE - Editor - Content Pipeline - Import and Export - Jul 31, 2020When importing a file from Blender, UE creates the correct number of materials, but the number of textures is incorrect and is being overwritten, and not importing the correct amount. Tested and re ...
Lightmaps cannot be created correctly when copying Blueprint that has Static Light as Child Actor component on the level
UE - Graphics Features - Lumen - Jul 31, 2020In this project, BP with Spot Light registered as Child Actor is placed. If we copy and build, the following warning will be displayed. BP_Spotlight_GEN_VARIABLE_BP_Spotlight_C_CAT_330 'BP_Spotlig ...
Fix primitive uniform buffer validation.
UE - Rendering Architecture - RHI - Jul 31, 2020GPUScene primitive validation is currently busted and asserts. It looks like there are two problems: 1) NaN's in the entries can cause comparison issues, so a MemCmp would be better. 2) There's a ...
ChildAnimBP with different skeleton than parent does not show child skeletons anims in AnimGraphOverrides
UE - Anim - Runtime - Anim Blueprints - Jul 31, 2020Create a Parent AnimBP, add any animation to it. Then create a childAnimBP from Parent. In ChildAnimBP, go to TargetSkeleton (from class settings) to change a different skeleton. Then go to the Anim ...
Live Link Face does NOT launch Take Recorder automatically if press red Record button
UE - Virtual Production - IO - LiveLink - Jul 31, 2020As you can see below, users expect to launch Take Recorder from the Live Link Face app, but it doesn't actually work.When you're ready to record a performance, tap the red Record button in the Liv ...
Changing blueprint default values inside arrays only updates loaded child blueprints
UE - Foundation - Core - Jul 30, 2020The rules for delta serialization in UE4 are complicated, and the editor tries to hide them from you, which works 90% of the time but can lead to confusion and data loss in other situations. In the ...
AutoLOD changes the static meshes LOD at different distances in VR Packages and Previews than in Editor
UE - Platform - XR - Jul 30, 2020Packaged VR Projects and VR Previews change the LOD at a closer distance than in editor. ...