This is a known issue due to the way that iPoker writes their hand histories - they don't tell us when you are moved and what the new table is that you are moved to. As such we don't know what window to move the HUD to.
If you stop and restart Auto Import, everything should work properly though.
The iPoker client only has "Auto Center" as a client option - if you use that, you can turn it on as explained in our
Tutorial: Preferred Seating. We do not support "Sit Me Here" for any site - none of the sites tell us what seat you are sitting in, and so we do not have the information we need in order to support it properly.