I have 3 M3U tuners (plutotv, stirrtv, PBS stations). And I have 3 XML guides for each one respectively.
When I add each guide, I add it ONLY as guide data for the tuner it goes with. For example, here I have the XML guide data for PBS set to only work with the PBS tuner. And so on for each tuner.
However, when I add a new tuner and XML guide, even though that guide is set to ONLY work with the corresponding tuner, it erases the current guide data and mapping of my previous tuners and doesn’t allow me to remap.
For example, with both Pluto and PBS added, attempting to map PBS only shows me the Pluto channels - even though the Pluto Channels are set to ONLY work with the Pluto Tuner:
The upshot is that this bug makes it nearly impossible to run multiple M3U tuners.