Add me to the list of people who found Tablo in the Firestick 2 App store, got it working but am stuck on the Prime Time All screen. You can scroll up and down, left and right (but you have to guess or use trial and error to guess position as it doesn’t highlight). You cannot access the New, Genres, Channels sections of Prime Time or the Main Menu to get to Live TV, Recordings and other areas.
Next, I tried pairing a bluetooth mouse to the firestick 2. It didn’t seem to want to pair the first mouse I tried (which is very advanced. I may have forgotten how to enter pairing mode) so I tried an older, simpler bluetooth mouse and it paired. Although it worked a little slow and clunky, it let me access all menus and I could see what was highlighted. THIS IS A WORKAROUND until a better update comes out!! You can access live tv and recordings. The only problem I had was that once you start watching a live tv channel or recording, there is no way to escape out of it. I had to use the back key on the Firestick remote to get out of things.