Is this a normal compassmot output?

I ran for the first time a compassmot procedure on pixhawk and got the following output on the last few lines of the CLI compassmot screen output:

Thr:669 cur:37.57 mot x:7.5 y: 4.0 z:-0.7 comp x:nan y:nan z: nan

I have numerical values (no “nan”) up to Throttle 621, then for higher throttle I’ve got these “nan”.

Is this normal and what does it mean ?

thx for advice

no, it’s a known bug: