I was just prompted to install an update on my R2, which I did. The bed had then been defaulted to -20mm, so it was air-printing. I have been trying to adjust the bed using the Fine Tune Z-Offset Process. The issue I keep running into however is that the line will start close to the bed at the end, and as the print head moves toward the center of the bed, the bed actually moves down (as evident by the z-screw turning). Once past the center of the bed, the bed starts moving back up to the appropriate position as the print head reaches the other end. I've tried a know working print, and the same thing is happening with it as well. I had plenty of successful prints prior to installing the update. Any thoughts on this one? I've not run into anything like this before and can't seem to dig anything up on it yet. Thank you for the help.