I'm having the same problem with the ASIAir Pro and the AVX mount. I verified latest firmware in each. I set the HOME position on the AVX, align the scope, fire up the ASIAir, then SYNC the phone/tablet to the mount. When I hit the "GoTo HOME" in the mount tab the mount slews in both RA and Dec to a position about 10 degrees off. It's repeatable, rotating to the same position every time.
On a related note, I've found a problem with Polar Align routine. If I start from the HOME position established by the mount, the PA routine refuses to rotate the RA axis the required 60 degrees during the 2nd step of the PA. Sometimes it rotates a few degrees (5-10) then hangs. Other times it just hangs. If I hit the "GoTo Home" in the app first, the mount slews as stated above. Then if I start the PA routine from that slewed position the PA routine works fine.