About to put in a tech support ticket, but they are slow so.... it is a race to see if you can fix this first.
2mmx30mm probe measure outside cylinder. Then measure the same cylinder with a 4mmX40mm probe. The measured diameters are exactly the same.. but the measured centers are 0.006" different in X and 0.006" different in Y.
this is so not cool, i don't know how long this has been going on or what is causing it. I thought that it was my calibration, so i recalibrated and said "Yes tool has moved" and manually "found" the cal tool just to be on the safe side.... still the same results.