I've got a DUAL X-GPS 190 ADSB with AHRS using the I-Fly app on my Lenovo tablet.  I've got the latest updates for I-Fly and DUAL.
After I calibrate it on the ground before flight the attitude indicator is OK.  But inflight the AI  tumbles 90 degrees and won't recalibrate.  Once I get back on the ground it works fine and recalibrates OK.
I've got a message into DUAL but no response yet.
Anybody got some advice or ideas?