did not set anything, did some settings propagate to me ?
I got a missing page for the bandwidth if i do not have a network connection. Attach is the screen shots along with what happens in mobile tethering. This is Opensuse Tumbleweed but it happens in Debian Forky as well.
this typically happens when the firmware offers up sensors under a new name and system monitor can no longer find the old name.
if you manually reassign each sensor, it should stop asking you where they went.
unless they change again, but that’s the firmware and nothing to do with the system monitor.
if you are constantly flipping back and forth between different network hardware, then the system monitor is going to have a hard time keeping up with the changes.