Mac SM6 and Sequencer Rendering all Black

I’m running into a dead end with 5.5/5.6 where the Sequencer will absolutely not render anything besides solid black frames with Shader Model 6 enabled. SM6 is required to get virtual shadows, and I was very excited to see 5.6 fixed the issue with hair groom voxel shadows on Mac. However, sequencer renders solid black every frame, no matter what I do. Unchecking SM6 reverts the Sequencer to working fully with the exact same settings.

Can anyone confirm this on their end (tested using M4 Max) or have a fix?

Havent tried rendering but just to add to Mac SM6 issues, on metahumans on sm6 the eylids are jagged, on sm5 they look smooth and correct but then you lose certian shading for the hair grooms, so fustrating mac is always being left behind in unreal