Bruce Donzanti wrote:
NINA uses the computer clock, so assuming it is approximately right, if its sky atlas is wrong, it is likely the lat/long. Perhaps a missing minus sign? USA is + for lat, - for long (sorry if that's obvious).
Other things you can check:
Date and time the same in the mount (normally APCC Advanced Settings, Keep Mount time synced to PC time will do it).
Check the lat/long and see if they are right in all places -- I am still not completely sure how the sites in APCC and ASCOM differ but they should end up being the same).
Under NINA, Options, Equipment, Telescope there is a "Do not sync" which should be turned off.
ASCOM Driver Additional Conf settings check the Use RECAL for Sync's (should be on).
After you unpark at night, I would slew somewhere and plate solve so it can do a sync. You can do it in APPM (whether there is a model in use or not) under the Plate Solve and Recal, or do it in NINA with a slew and center command either in a sequence or from framing assistant. This should get APCC and NINA in sync (though they really should not have been far off to begin with). But this is usually for very very minor discrepancies, you seem like you have a major one.