Hi and welcome to SGP. Please see this post for instructions on how to
provide a SGP log file:
You have your “attempt to center” set at 1 time. This means that plate
solving will only try one time to get the target within your alotted error
of 50 pixels. Unless you have a super accurate mount that will mostly
likely fail. Try setting the attempts to 10. So let’s say the first
attempt gets you within 150 pixels. SGP will keep trying to plate solve
and center the mount until it gets below 50 pixels error, up to 10 times.
Most mounts require 2-3 plate solve iterations to get there.
That’s my guess.