DerPit - thanks!
I can't use nightlies as am using an official Stellarmate OS.
The difference between the two PI's is the length of the CAT6 cable and different cameras (the good one - ASI294MC and ASI120MC, the bad one - ASI071MC and ASI224MC, usually ASI224MC misbehaves).
The good one is located on the ground level, the bad one is more remote with a longer CAT6 cable on the roof of my garage.
Tomorrow I'll swap Pi's to see if it makes a difference.
DerPit wrote: I first thought of
this issue
, but that is fixed in git now, so should be in the nightly(?).
Are the two Pi setups identical (soft+hard)?