May we ask to break the inexplicable archaic traditions and do us some innovation as a Xmas Gift 2014 and include a very simple numeric cooldown to Bartender so we don't have to install the 125th standalone addon for such a tiny feature. Franky, it should be a pretty basic and default part of any action bar. Everyone needs it.
Cooldown Count is included in the game as a basic feature now, check the games options to enable it. No need for Bartender to add anything.
Sounds like you might have an empty bar flowing around your screen, which will block your mouse. Best to simply unlock the bars and check there is no green thingys randomly in the middle of your screen.
Bartender doesn't actually set or save the keybindings by itself, it asks the game to remember them, and the game saves them on the game server, so even deleting local files wouldn't necessarily get rid of them.
macros with [stance:2] modifier are also working ...
The thing is, if you put something in the custom box like that, it basically is like a macro.
If for some reason a condition doesn't work there, its out of my control, because all i do is ask Blizzard to evaluate this macro condition, which apparently doesn't catch.
I tested DA before, but it just didn't work for some reason.
That condition is rather broad, just because your main bar is converted into a possessbar does not mean all of the UI should be hidden. vehicleui and overridebar are the official conditions for the two cases that should indicate a overriding UI is shown, and if those don't fire, its a blizzard bug.
5.1 will add a bunch of new conditions which may hopefully help fix this properly.