Treadmill Calibration seems broken on Software 14.10 and 14.20 Fenix 5X

After the update to software version 14.10 and after updating to 14.20 my treadmill runs have been throwing slower paces in the order of 12minutes /km when the machine is giving me just below 8 minutes/km, I have ended the treadmill activity about 2 or 3 times with the calibrate and save option entering the actual distance, but it seems there is no change, and the runs after calibrating keep the slow pace.