The last update fixed the problem with a lot of armor but for Silent Gear mod the patch only fix the bug of the alloy becoming gray with vanilla trim material, the trim itself still don't render on item (other materials still work perfectly)

Tested with forge (47.2.1) in 1.20.1

This was a bug w/ AllTheTrims, has been patched in AllTheTrims 3.3.3

I'll take a look at what cursed things silent gear does to their armour items.