Oh absolutely, our office saw the same thing happen to these ipad knockoff terminals they installed on every conference room to book the rooms. They worked fine for a while and clearly we had staff who knew their functioning, then one by one after a while they'd go wonky, offline, or into a state where you could access the admin panel and mess with the Windows Embedded operating system. The original office designers and staff present when we moved in were all gone so no one had any idea who even to call to fix them lol