Hey @Jdharr44. Do you see anything in the Event History that can tell you why it re-armed itself? It could be from a shared user that used the app, someone that used the Keypad, or maybe it did not accept your Mode change when you did so on the Keypad/App. If you go into the Ring app > Main Menu > History > Alarm > Check back during that date/time to see why the system went back into the old mode.
If you still cannot find an answer, please give our support team a call at one of the numbers available here. We’re taking additional steps to protect our team and help reduce the spread of COVID-19. This has resulted in longer than normal wait times. If you are outside of the US, please read our response to COVID-19 here to see how to contact support. Let me know what you find out, neighbor!