Auto Thrust

Hi Everyone, I'am a beginner.

I have problem with the auto Thrust, when i'm using A320 family and I'm in landing position and then airbus call out "hundred above" I disanged AP and landing manually. but in the few second when i flew manual suddenly the auto trust change the power even though it should be in CL position for auto trust mode, this movement affects is warning appears in ECAM and PFD.

Fyi : I'm Using Aerofly Mobile and using Tilt Control

Whats wrong?

Thankyou

maybe i don't know what you mean sorry, but i trying to explain

usually i using totally button in cockpit, exepct thrust setting(red circle mark), it that mean move by itself in auto thrust mode when I'm landing, it affect in PFD to repotition thrust in CLB(green circle mark) and i believe i'm not touching at all

Yes, I know that, but the problem is autothrust shouldn't move in autothrust mode cause it set by the aircraft computer