Have you tried using another player to watch the channel (ie. Plex, Jellyfin, Kodi)?
BTW theres only a few channels per market in the clear so its a guessing game for the devs to sort out ATSC3. Hopefully, it'll be sorted as I think ATSC 3 is the future and some guys need these channels working in the main client as they can't get the 1.0 signal