We have a test prototype with a North American CAT-1 Notecard out in the field. It could be a fluke, but after syncing notes consistently every 5 minutes, but got our last note at 23:58 UTC on Sunday night. Can you think of anything special about UTC midnight, particular the midnight of Sunday-to-Monday November 12-to-13, 2023? Is it possible Blues changed something in the response format, did some sort of automated Notecard update, or some other black (blue?) magic? This is just too much of a coincidence!
There were no Notehub outages during that time - is there any chance you were monitoring voltage on the device and it simply ran low? Is the device back online now?
We were monitoring voltage. Battery was fine. We just got the hardware back and were able to determine there was some sort of Rust panic. Now we’re trying to figure out what caused it.