Alright, had another go with 3.5.4 stable. I was only able to reproduce it once and got a screenshot of it with my calibration settings. It was the first calibration and any attempt after that seemed to work correctly.
I'll attach a log from when I was running the 3.5.5 beta and then the 3.5.4 stable used after that.

The conditions haven't been excellent here I should say, quite cloudy and on a somewhat unstable floor on my balcony.

Alright, had another go with 3.5.4 stable. I was only able to reproduce it once and got a screenshot of it with my calibration settings. It was the first calibration and any attempt after that seemed to work correctly.
I'll attach a log from when I was running the 3.5.5 beta and then the 3.5.4 stable used after that.

The conditions haven't been excellent here I should say, quite cloudy and on a somewhat unstable floor on my balcony.