Unreal Engine Issues

Editor Crashes when enabling Vertex Colors on an imported Skeletal Mesh with Morph Target Animations

Licensee wants to be able to import skeletal meshes which have Vertex Colours (their entire game is Vertex Coloured) and Morph Target animation, but they're seeing a crash when toggling Vertex Color ...

Windows FMallocTBB seems to have a memory leak

The InsertFeaturePacksIntoINIFile() function creates an invalid entry in the DefaultGame.ini file

The GameProjectUtils::InsertFeaturePacksIntoINIFile() function is not creating a valid entry in the DefaultGame.ini file. It is currently missing a double-quote at the end of the PackSource value fo ...

Image sequence resolution does not match render settings when set to Custom Render Passes output format

Image sequences do not match render settings when set to Custom Render Passes output format. This issue is directly related to the Custom Render Passes Image Output Format. This does not reproduce w ...

Datasmith files containing special characters do not import correctly in Unreal

User is experiencing an import issue with a 3DS Max 2019 file. Their workflow is as follows and works for all their assets but this one:Original file created in revit 2019Import revit link to 3dsmax ...

Multi-User Template Project holds at 95% for a very long time

I have now waited over 25 minutes to open the Multi-User project template, and it will not move past 95%.  I have attempted this twice with the same result.  Other templates load without delay. Upd ...

UMG Background Blur Not Working On Android

UMG Background blur does not appear when packaged for android. It will work in PIE at the same preview level but not when packaged for the device. Found in 4.19 CL# 4033788, 4.20 CL# 4369336, 4.21 ...

Packaging failed with disabled plugin

Disabling any plugin causes packaging failure. No repro in 4.19 Also occurring when Disabling all platforms except for windows and changing configuration from development to shipping. ...

Incorrect Collision Enabled loaded for attached Blueprint Components

Incorrect values are loaded for the Collision Enabled property of attached ActorComponent Blueprints.  ...

Assign Event On Destroyed no longer creates Custom Event Node

When creating a new Blueprint Class based on an Actor parent, If you navigate to the Actor's event graph, and right click on the editor blank space;  type "Assign on Destroyed"  and select  "Assign ...