Unreal Engine Issues

Warning Failed to find object 'Class None.NewBlueprint' appears on any selection ChildActor Component in BlueprintEditor

Summary: The following warning appears on each selection of any ChildActorComponent inside Blueprint Editor:LogUObjectGlobals: Warning: Failed to find object 'Class None.NewBlueprint1' (where NewBl ...

udatasmith runtime import does not work properly

The udatasmith is created through the unofficial blender exporter that seems to still be using SDK 4.24E0 ...

Reflection result of clear coat bottom normal is not correct.

This problem tends to appear in the southern hemisphere of spherical objects. It is not reproduced in 4.19. ...

Using the Transform Tool to manipulate multiple Event Trigger keys at different times in the Sequencer Curve graph sometimes causes crash

This is not a regression. I was able to reproduce the crash in 4.26. Using the transform tool to manipulate keys for an Event Trigger within the curve editor of sequencer sometimes causes it to cra ...

Groom is visible in editor on linux but not in cooked version

Niagara Mesh Particles do not work with Refractions from Ray Traced Translucency

Volumetric Render Target Mode 2 is blending past frames.

Volumetric Render Target Mode 2 is blending past frames in Time of day map with the volumetric clouds.  This is a regression due to it not happening in 4.27 ...

Level Object value is lost when a new level is loaded using the same BP

First discovered this on Linux in //UE5/Main. In the repro, you play from level 2; if you opened Level 1 and played from there, the same outcome would occur. LogNet: Warning: Travel Failure: [Clien ...

Ray traced reflections skewed with un-combined meshes

Steam Sessions fails to create when using the Create Session node

This is a Regression. 4.26.2 - Binary - no issue creating a session. 4.27.1 - Binary - no issue creating a session if you convert a previously working 4.26.2 project. 4.27.1 - Binary - Fails to c ...