I have a different issue on IOS where the app will lose all of my bookings. They aren't linked to my AA account (I do actually have one) as I credit to BA instead, so I have to add them all manually. Randomly but too frequently they all disappear and needed to be added in again.
Yesterday's occurrence was after putting my phone into airplane mode to fly from DFW to PHX and when I turned airplane mode off and opened the app they were all gone. Not the end of the world by any means but frustrating when you have to go and find all the record locators in e-mails to then add them back in.