Throttle Idle at switch on RM TX16 MK3

[oldnansome]

I have the above radio and latest iteration of Queen Annes Revenge. I have setup 3 fixed wing aircraft under Mode 2 (TAER) and in each instance the low throttle point is shown as 89%. Throttle cut shows the full -100%. Clearly an issue as when the radio is turned on the warning shows up Throttle Idle and I have to press to skip the warning. Although, to date no motors have fired up it is a concern. Any ideas on how to resolve the issue. I have tried using the throttle idle tab under in theThrottle menu to no avail