What causes multiple door sensor tampering warnings triggering alarm overnight?

I've been using ring for only a few weeks and was very happy until last night.  Easy to setup and nice interface.   Though last night three different exterior door sensors gave "tampering" warnings when I tried to set the alarm at night, preventing it being enabled. Two I cleared initially by pressing their button, the porch door I could not. I tried swapping battery units and a previously working battery unit then showed "tampering" when moved to the porch door, but worked fine when moved back. The porch unit showed tampering what ever magnet it was mated to.  I checked the magnet at the porch door. I tried removing and re adding the porch sensor. I had to exclude the porch and set the alarm. After 1am, when I was asleep, the back door later retriggered tampering causing the alarm to go off and waking myself and likely my neighbors.  My cameras do not show movement nearby at that time so it does not appear to be due to physical tampering.Any idea what can cause this?  I'm obviously concerned now about the reliability of my new home alarm.  One thing which worked well last night was that I did received a call.  However, sleeping with earplugs I didn't even hear the alarm, only the phone, until I took them out.  The unit was only a short distance away so I'm not sure whether or not the call may have preceded the alarm triggering within the house.One tip: Use a PC for opening tickets not a phone.  I wasn't able to figure out how to chat with a human using the app on my phone, and there seemed to be a delay in the sending of authentication codes resulting in the login attempts timing out by the time the code arrived (approx 10 minutes later). Generatring codes and trying those also failed  to be accepted and seemed to then result in the account being locked for entering too many codes when I tried a PC.  After waiting a few mins, in my case I found that using a desktop PC was a much more reliable way to open tickets.