With the U1, it’s not disappearing even that way...
Thought that would probably be the case with the U1 based on
@CybeRider 's test results using both devices. (I see what you meant too, it's not a silhouette/ghost, it's a hard nav bar just without the actual icons). Was worth a try though. (Just for the sake of trying it, if you repeat bringing up & closing the nav bar 3 or 4 times using the MENU button, any changes then or still stuck with it? (I'm fairly sure I know what your answer will be, but give it one final go
.)
If this issue is that much of a PITA for you, ultimately three choices....
1) Obviously, just put up with it & hope that a future update rectifies it. (However, it would be well worth reporting the issue to Google/Amazon respectively. The more people that report it the better the chances of a resolution, & possibly quicker too.)
2) Using the U1's app settings, roll the affected apps (or any apps you even suspect of being involved) back to the stock versions for the firmware you flashed to, (turn off auto updates for said affected apps in the Play Store beforehand). (Obvious downside there, the original versions are potentially quite old now which could come with their own different set of problems or lack of features respectively.)
3) You could source versions of the Play Store & Prime Video (& possibly the main Google app) APKs dated from just before the rough timeframe when this issue first began for you & try loading them instead. Try sorting the Play Store/main Google app first & see if that solves it for the others, if not, grab the additional APKs. (Another way of going at it could be to reflash the device again & as soon as the device actually does the initial Google sign in pull the ethernet cable before anything can start updating. Then go to the Play Store & disable auto updates for any app you even suspect as being in the loop for causing this problem. If successful, you could try enabling the auto update for them one at a time again until you recreate it & you'll then have a definitive answer. Again, one downside, no way to stop the Play Store app itself updating but a the APK for that alone might do the job too. (AAAAAAGGGGGHHHHHHHH LOL)
I know it's potentially a bit of messing around but you might get lucky & get your U1 back as it was pre-July
. (Unfortunately we're all stuck between a rock & a hard place with issues like this!! Obviously we all want (most) of our apps up to date for bugs fixes, security, etc., etc. However, sometimes those updates can have highly undesirable consequences & knock on effects with other apps too, or cause even more problems than they ever resolved, (case in point
). (Google completely ruined a couple of older 10" tabs I used to use, (the buggers).)