Hall Trapezoidal Mapping detection

Hello Roboteq-Team,
I am using a FB2360 controller with the firmware version 2.1.
I am performing a sensor learning procedure in trapezoidal mode but I get always the following error message:

Hall Trapezoidal Mapping Detection Failed!
Please try again with higher reference seek power/=1:0

I tried also higher reference seek power, but the procedure always failed.

Do you have any idea?

Thanks in advance!

Best regards