Before take-off I verify that in the PERF CLB tab in the FMS, I have THR set to AUTO-DERATE as usual. Upon take-off, at some point, this switches to CLB. This has happened two flights in a row.

I looked into this in the FCOM and apparently there's a way to get to CLB from AUTO-DERATE (yellow is my emphasis):

I will test a bit more, but perhaps this is what is happening. I'm not quite sure how it should work, since passing from CL to MCT happens when I push the throttles for a normal flex TO, and the levers go back to CL normally too. All I can say is that this did not happen in previous versions of the plane.

Okay, after testing: moving the throttle CL->MCT->CL doesn't make the aircraft to switch to CLB so that's not what's going on (and maybe that functionality should be added).

Edited 18 hours ago18 hr by Gungnir

22 hours ago, Gungnir said:

Before take-off I verify that in the PERF CLB tab in the FMS, I have THR set to AUTO-DERATE as usual. Upon take-off, at some point, this switches to CLB. This has happened two flights in a row.

I looked into this in the FCOM and apparently there's a way to get to CLB from AUTO-DERATE (yellow is my emphasis):

I will test a bit more, but perhaps this is what is happening. I'm not quite sure how it should work, since passing from CL to MCT happens when I push the throttles for a normal flex TO, and the levers go back to CL normally too. All I can say is that this did not happen in previous versions of the plane.

Okay, after testing: moving the throttle CL->MCT->CL doesn't make the aircraft to switch to CLB so that's not what's going on (and maybe that functionality should be added).

Thanks for your report. I will forward this to the team for further clarification!

Same here.