Well, If I have time tomorrow, in an effort to figure it out as I will need to actually use the face morphs I have wasted about 10 hours on today, I’ll try and give the cubes a re-haul to put More then one morph onto the Hole area.
IF it is something we can easily replicate - assuming it even actually is a bug and not just a new “feature” of the engine - it will make filing a report a lot easier.
PS. btw, you could totally just subdivide that geometry at least 1 more time to get overall better shading at the cost of double the tris count?
It’s not as heavy as I would expect. 8 to 9 quads sideways means that there’s probably a vertex every 2cm or so (average of 20cm under an armpit).