Taz Pro Stuck in "printing" mode in touch UI

If you stop a print through Octoprint, the touch UI gets stuck thinking it’s still printing. That means lots of the options are not available. Hitting cancel print within the UI does nothing, it remains in a “printing” state. I have to power cycle to get the printer back to an idle state with respect to the UI.

I can start additional prints without issue, but once you start one print the UI remains forever in a printing state.

Is there a gcode command I can use to reset the UI back to normal? Does Marlin even have a reboot/reset command? I don’t want to hardcore the situation with a cold power cycle, if possible.

M77 is the answer. This is not present in the default Octoprint cancel script.