600MX cut out on 600 pro

[smsodhi]

I recently replaced my 600mx on the 600pro I have and all was running well. I have a helijive 120 which I have been using without problems. I just bought a set of thunderpower 65c 3300 batteries and took them out for a fight. All was good but on the third flight during a hard collective manoeuvre the motor cut out. I had a hard auto in and damaged the blades slightly and undercarriage only.
I had power to the servos and the V bar log showed no loss of power. The V bar log log shows the crash on page 30 at time 2:53 and I have uploaded the lov file from the jlog.
I note the ubec voltage goes flat at the time of crash and then comes back. any significance?
Any help would be appreciated as to why the motor cut out. I have programed the helijive 1,4,9. I did not reprogram it after changing the motor,same make and model. Should it matter?
Everything is working fine now and I forgot to look for the blinking lights on the ESC
Thanks for any help.

[NRPY]

You probably need to also use KSA mode (mode 10 on a PowerJive). What you describe is unfortunately common for Align motors. We've seen it a lot with the 700MX. While I don't fully understand it, I've been told the issue is probably related to the magnets not being exactly equidistantly spaced around the inner circumference in the can. This can cause havoc for the ESC's auto timing routine during high power situations, causing the Jive to shutdown for safety.

[smsodhi]

Thanks, Stolla said the same thing to me.
I am kicking myself now as I was going to get the KDE motor and decided to go with the 600mx again as I did not have any issues. I guess my flying style has changed now and / or I was lucky with the old motor, Also the old packs were not as powerful as the TP packs. 9 on the helijive is KSA mode.