After setting up the endpoints on the channels I am using (1-4) and testing everything I decided to try out the timer feature. I set the timer to be activated by the throttle and to count up and to let me know when 10 minutes had elapsed.
Next check with the plane I had no throws on right aileron stick input. I took a look at the endpoint settings and they had all gone. Actually the right hand setting of the pairs had just disappeared.

Not sure if it was related, the very next flight (after setting up the endpoints again) while in the air the throttle did not appear to be running full on full I decided to bring it in to take a look and the throttle cut when it should have been at idle just turning in to my final line-up, I tip-stalled and crashed and now have a badly bust up Big Stik, probably repairable but all the same very annoying. The throttle cut switch was not engaged but I guess the endpoint was not where it needed to be to get the idle, just guessing, as also the throttle wide open sure seemed to be short of wide open.

I am not the only person at our field with this radio that has noted a timer setup change blasting the endpoint settings, the only other flyer I know with this radio has seen the problem also, and by the way the problem is repeatable and happens every time! A fix is needed!!!!!