I have used firmware 1.24 for a long time (since release) without issues.
I upgraded to 1.28 yesterday and tried to calibrate the motor kv (its in an e-revo brushless 2200kv) it gave a reading of ~6200kv

Twice.
Then I just wanted to run my truck with my friend so I disabled torque control and I noticed that the motor control at start was Terrable

.
I went back to 1.24 and it was as smooth as can be.
Any ideas why 1.28 had much worse starts and the torque control calibration was so far off?