Please tell us some basic information before asking for help:
Model Name: zenfone 5
Firmware Version:PPR1.180610.009.WW_Phone-16.0615.2006.131
Rooted or not: not
Frequency of Occurrence: almost always with firefox when used landscape
APP Name & APP Version (If your issue relates to the app): not sure it happen with Firefox only, only firefox it's the app I often go to use landscape
I keep auto-rotation permanently ON
From some time on, so I suppose related to some update, I experience this defect
It is useless to "shake" the phone, not only the app, but also the desktop and the position of the three "back" "home" and right one, will remain on the long side of the screen if I just press the right one and switch to another app
When you press the right navigation icon (sorry don't know the name for it... back is the left, home is the middle and right !?!?).
Though pressing the right one ALSO shows that the desktop in the background is landscape
The unique solution is to press home button and the desktop will restore to portrait as the rest
What's this issue !?!
Thank you