Are you sure the Corsair USBXp driver is what would be needed to monitor Motherboard and CPU temps?
In any case, I did disable and re-enable the driver and it did nothing. Only a corsairservice restart in services will cause monitoring to work again. But it inevitably froze some time later anyway
Update: I restarted driver as you said, but also stopped the corsair service, AND closed icue. Then i turned icue back on without restarting service manually. EVGA XOC is on (but not the "HWM" hardware monitor) and the monitoring seems to be flawless so far. But I haven't minimized icue to tray yet (i usually minimize iCUE and later notice the monitoring stops after opening dashboard again)
2nd Update: iCUE's monitoring ran just fine for an entire day - never minimized it to tray since I got it working early today / late last night. I minimized it to tray an hour or two ago. I just opened it again to find that all the temperature and fan speed monitoring graphs are flat. i.e. monitoring has froze. Perhaps something in the minimizing to or being in a minimized to tray state, breaks it? It can't be bringing it out of minimized-to-tray, because all the graphs are flat, which means it happened a while ago.