I had this problem on both my XA2 Plus and 10 iii immediately after upgrading to 5.0.0.55, including some other ‘funnies’ - e.g. You had to tap on an Android app icon 3 or 4 times before the tap would register and the app would load (and, yes, AppSupport was already running), but after rebooting both devices the problem has gone away now.