Update: all noted bugs have been fixed by Preview 1.21.20.21! 🎉
I'd said recently there were a number of bugs with the minecraft:transformation component on blocks. I finally took an hour or two to (kinda) figure them out and report them:
Block transformation component sometimes treats schematic as unit cubeBlock transformation component sometimes doesn't remap specified adjacent culling directionBlock transformation component can't rotate vanilla full block geometry
Also, there's:
- Vanilla full block geometry down face flipped over x and z compared to
blocks.jsonequivalent - Geometry safe zone, collision box, and selection box checked before transformations are applied