This started happening today. I turned off all Beta features & made sure Part Collisions are turned off. Whenever I set position/rotation of parts it just reverts back to what it was & undoes my change.

This started happening today. I turned off all Beta features & made sure Part Collisions are turned off. Whenever I set position/rotation of parts it just reverts back to what it was & undoes my change.

Interesting… this was fixed after I anchored the part. Shouldn’t it let me position it how I want regardless of anchored status? Part Collisions are turned off.
It’s probably due to welds. You can disable the welds and it should work. Anchoring disables welds. We are working on ways to fix this.
It was a freshly inserted BasePart with no welds attached.
Do you have steps to repro or a place you can share?
Also be sure you have surface joining disabled/set to None. A part could create welds on insertion with this on.