What are these RA (topo) and Dec (topo)? They are what are giving meNo... the error values have nothing to do with the RA/Dec (topo).
Plate solve solutions return coordinates in J2000.0 coordinates, which roughly means where the stars were at the beginning of the year 2000. Because of precession those coordinates need to be precessed to where they actually are today. That is the RA/Dec topo coordinates.
The error values are the delta between the mount coordinates and the plate solve coordinates. It might have just been a bad plate solve.