I’ve been able to poll ListDevices every minute, quite reliably, for most of this year. That is until it suddenly gets stuck dishing out the same values. When I notice this happening, I throttle it to 2 minute intervals (hello crontab), and I instantly get good data again. Just less frequently. After a couple days I go back to every minute, and it seems okay for a few more weeks.
It feels like the server is penalising me personally because I’ve used up my monthly quota or something (I haven’t noted when this happens). But it’s more likely to be some unintended glitch or incompetence than it is malice.
I could do with some way to detect when this happens and throttle back automatically, but I’ve not found a field that changes often enough. Maybe I’ll just poll less often overnight, or when I know it’s off.