Problem not solved, but I may be on to something. The other evening and tonight I encountered the same problem. But these last 2 nights it was RA that would not correct (whereas before it was always DEC could not correct).? So like the time before after plate solving fails to center I set the mount to park, rebooted Gemini, reconnected and disconnected etc. Finally when I was almost ready to give up I tried something. Went into Gemini Settings and unselected "Gemini expects J2000....", then went to slew and center and it worked. Now 2 nights I encounter this issue, 2 nights it is RA
This is after deselecting J2000 in Gemini:
2024-06-05T22:21:43.0058|INFO|CenteringSolver.cs|Center|85|Centering Solver - Scope Position: RA: 09:56:33; Dec: 69¡ã 05' 04"; Epoch: JNOW; Offset: RA: 00:00:00; Dec: 00¡ã 00' 00"; Distance: 00¡ã 00' 00"; Bearing: 00¡ã 00' 00"; Centering Coordinates: RA: 09:56:33; Dec: 69¡ã 05' 04"; Epoch: JNOW; Solved: RA: 09:54:35; Dec: 69¡ã 05' 08"; Epoch: JNOW; Separation RA: 00:01:57; Dec: -00¡ã 00' 04"; Distance: 00¡ã 10' 29"; Bearing: 89¡ã 27' 05"; Threshold: 1
2024-06-05T22:22:09.6259|INFO|CenteringSolver.cs|Center|85|Centering Solver - Scope Position: RA: 09:56:33; Dec: 69¡ã 05' 04"; Epoch: JNOW; Offset: RA: 00:00:00; Dec: 00¡ã 00' 00"; Distance: 00¡ã 00' 00"; Bearing: 00¡ã 00' 00"; Centering Coordinates: RA: 09:56:33; Dec: 69¡ã 05' 04"; Epoch: JNOW; Solved: RA: 09:56:30; Dec: 69¡ã 05' 09"; Epoch: JNOW; Separation RA: 00:00:02; Dec: -00¡ã 00' 04"; Distance: 00¡ã 00' 14"; Bearing: 71¡ã 32' 16"; Threshold: 1
It basically takes only 2 tries.