This is the default SEP parameters used by the Alignment module (not Focus).
If you bring up parameters from the Alignment module, you get specific screens for Alignment, whilst if you bring up parameters from say Focus you'll get to the ones used by Focus.
Can you repost the 1-focus-default parameters (which is what you were using on your last (bad) focus session).
OK, I understand.I setup Keepnum to 300, but the issue occurs still. I retreive a message about watney.it says it is valuable for .Net write in C#. So, I get is ride off. Intenal, Astrometry.net or Astap run perfectely.
That SEP profile looks fine for star detection. So I don't know why you weren't able to detect any stars I'm afraid. I can only suggest trying again and hoping for a different outcome.
Clouds all the next week unfortunately.
Wait and see.
One of my friends uses at this time V3.5.9, with the same focuser and he has no much issue with.
Damage to not be able to obtain easely and old versio without compilation.