, I've had to factory reset my Fire TV stick, so sideloaded bubbleupnp again from my tablet, but that's now running 3.7.2 after Amazon Store updates. The interface works a lot better than the old 2.9.x I had, but I'm running into the problems with gapless Qobuz I described a year or so ago (did you ever get my log file https://forum.xda-developers.com/t/...t-and-renderer.1118891/page-811#post-86095639
I had gapless working well on the old 2.9.something version I had on the Fire stick - any chance of a link to download the Amazon 2.9. apk?
The old version advanced the playlist correctly on the controlling phone/tablet, even though the display on the Fire TV didn't update properly, which wasn't a great problem for me as I'd turn off the TV screen as soon as Bubbleupnp was fired up. Now, both the controller and renderer playlists get stuck, leading to the repeated tracks. I've tested this with my phone as controller and tablet as renderer, which shows it's not a specific Fire TV problem.