it can fail for a whole slew of reasons including ( but not limited to) : stars are too big, seeing is horrible, you're further than 5 degrees from the reported Ra and Dec. It is great that astrometry.net was designed as a failover
Hamza Touhami | Site Administrator
I disagree. I prefer an option to focus with every filter change. It is a deal killer for me. I do not trust offsets. Is it possible in the next version to update a option to do autofocus for each filter?