Yesterday I updated 1.3 once again hoping there was a bug in the original download.
Update works great! Love seeing % and bytes information. Much better than the status bar only.
Anyway, no luck. The second sensor was back, functioning after the update, but after a few minutes, stopped logging/updating/sensing. It still shows on the MT screen, but no change in the value it shows and no update to the web. If you unplug the sensor, it doesn't drop out - sensor 1 will - and it keeps logging/updating/sensing as it should and will drop off the screen if you unplug the sensor.