This is a fairly well documented issue between EQMOD and SGP. I would recommend NOT building a model and just using a simple single star sync to determine the pointing location and then SGP should be able to move things just fine.
The issue seems to only come up when there is a more sophisticated pointing model built up in EQMOD.
I believe EQMOD is tossing out the sync data if you're fairly close and then since the sync wasn't able to correct things the slew doesn't move the mount as EQMOD thinks it's already where it needs to be.
Thanks,
Jared