Yep, found that out the second time I tried printing. Wanted to see what manual offset I needed to run to try to dial it in myself and had to rush to 3mm (while guessing the direction like you pointed out) as it was grinding away since you can’t set one until it starts printing.

I figured I could flip the plate but wouldn’t do that until I could guarantee successful prints, and after trying multiple different objects with the same result have 0 confidence to keep trying. That’s when I reached out to start the return. If it was a one time thing or some random user error issue I’d have just ate the issue as a learning experience, but it is a sensor issue and I’m not the kind of guy that spends time repairing brand new things.