Beginning with 2.1.19, Channels no longer correctly combines channels from multiple tuners (seen with dual HDHomeRun Extends).
It appears to be combining non Favorite channels correctly but Favorite channels show up duplicated in the Guide. Additionally, the Android Home Screen Channel shows multiple amounts of duplicates.
Both tuners have the same Favorites set. Removing the favorites from one of the tuners seems to fix the Android Home Screen Channel but the duplicate Favorites in the guide remain.