On take off, when I pushed my No1 Engine thrust lever (along with my Eng 2 thrust lever), the No1 Eng would spool back down at about 85% N1 back to idle, after normal spool up before 85%, while Eng2 would continue to spool to take off N1 %. Once I had taken off (with about 10% N1 thrust reduction) I was able to enable auto thrust, which was then able to spool up the engine to take off N1%. In cruise, the engines are working perfectly with auto thrust armed. This hasn't been an issue with my Thrustmaster TCA Airbus thrust quadrant before.

Anyone know the reasons / how to fix it?

Thankyou!

Hello,

Try reseting your calibration entirely. If you change the REVERSE ON AXIS option (to yes or no) it will force reset the calibration, so you can start the process again. Then use the below guidance on calibration