Well… perhaps on Life Support 
You may be experiencing this: Channel subscriptions vanished [was: Ability to switch the driver gone?]
I have a bunch of Shelly v2 Devices Installed and working for ± one year .
I just checked my Hubs and don’t see his Original Test Channel installed, but my devices continue to work so I’m not inclined to mess with it at this time:
He also has TAustin Driver Test Channel (Alt), with a v1.9 found here, maybe worth a try.
I “do” see his Alt Test Channel installed on my hub, but the V1.9 Driver does not appear to be installed. His ONVIF Video Camera V2 Driver “is” installed from that Channel.
I went into SmartThings Advanced and it appears that I’m using v1.6 (which I “think” is found in his Original Test Channel)…
