I know this is an old thread, but I'm now having the same issues. FSTV loads, turns over, then returns to the Roku home screen, live or other. I've tried all suggested remedies - removing channel, unplugging, restarting, reloading to no avail. Have contacted FSTV, but if anyone has other remedies meantime, please let me know. Thanks.
I'm getting a whiff of MAGA from Roku.
When a channel goes back to the home screen, usually means the channel has crashed. Except for the ROKU channel, every other channel is responsible for itself. ROKU can do nothing in this case to help.