Home position is set when you turn on the ASIAIR. So, before you turn on the ASIAIR, have your mount in the correct physical Home position.
Another thing - if you manually move the mount after this - make sure you do it with the slew controls in the ASIAIR App.
Moving the mount by unlocking the clutches - after turning on the ASIAIR with the mount connection enabled - will make the ASIAIR lose the Home position.
Also - make sure you always do the following after a successful Polar Alignment:
Tap in Mount Settings. > Go To Home
This should, if everything is working, return your mount to the correct physical Home position.
It also seems to stop any issues with the ASIAIR losing where it is.
In fact, whenever I'm viewing multiple targets, I always go to Home first before moving on (In do unguided EAA).