poor alignment after flip - by: alacant

Hi everyone
I've around a 200 px error after a flip. It maybe related to this:
www.indilib.org/forum/ekos/3563-meridian...-did-not-happen.html
I have the astrometry indices installed and gotos via the ekos solver are very accurate. I think it maybe due to the tolerance of the solve (within x pixels say)
Question: where do I set the tolerance of the solver? Say, if the target is withing 30 px?

Any other pointers most gratefully received.
TIA,
Steve