The bug is likely not in Unity, and even less likely has anything to do with version 6.x installed in any version of Ubuntu.
I tried a new method:
In CCSM: Preferences -> (button), Profile & Backend (tab), Reset to defaults (button)
I then re-enabled each setting I usually use one-by-one.
It is not the first time I've done so, but it is the first time I used CCSM to reset the configuration; previously I had used apt-get remove --purge <unity, compiz and related packages>
I discovered the issue comes up when the desktop cube is transparent.
In CCSM: Desktop Cube (plugin), Transparent Cube (tab), Opacity When Not Rotating (setting, integer 0~100)
At any number less than 100, the unity panel will become permantly displayed over everything.
If you dig through this and related reports, you'll notice I had come across some strangeness here before, but there were too many other bugs going on to know what I was seeing.
The bug is likely not in Unity, and even less likely has anything to do with version 6.x installed in any version of Ubuntu.
I tried a new method:
In CCSM: Preferences -> (button), Profile & Backend (tab), Reset to defaults (button)
I then re-enabled each setting I usually use one-by-one.
It is not the first time I've done so, but it is the first time I used CCSM to reset the configuration; previously I had used apt-get remove --purge <unity, compiz and related packages>
I discovered the issue comes up when the desktop cube is transparent.
In CCSM: Desktop Cube (plugin), Transparent Cube (tab), Opacity When Not Rotating (setting, integer 0~100)
At any number less than 100, the unity panel will become permantly displayed over everything.
If you dig through this and related reports, you'll notice I had come across some strangeness here before, but there were too many other bugs going on to know what I was seeing.