I have run avast mobile security for a year or two with no problems, but when I updated my nexus 7 2013 to lollipop I started having problems with avast requesting me to enter my pin seemingly randomly. It happens when I swipe to unlock from the lock screen, it happens when I open applications, it seems to happen a lot! I have pin locked settings and google play but all other applications are not locked and yet sometimes seem to require the avast pin to access! This did not happen prior to lollipop upgrade. I have just uninstalled and re-installed to see if that will fix it ... has anybody else seen this problem? Is it just a me thing?