Chain sag calibration issue

while trying to calibrate I get stuck at the end when it is trying to correct for chain sag. I keep getting this popup. I have skipped this and cut a few things before but I’d really like to dial in the accuracy of my Maslow this time. Attached are the popup and the next screen (after skipping chain sag) to show information entered. Any ideas what’s going on?

I found this can happen when the pattern is cut with initial settings that should result in the second measurement being either higher or lower than the first measurement, but when you measure and enter the values, the opposite is true. In that case, it can’t arrive at a solution. Double and triple check your measurements…

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