After I am in game for a while, when i right click an icon such as a character portrait or battleground status, options do not come up. For example, when i right click the battleground queu tab, it does not display options such as leaving the queu or entering the battleground. This goes away after i relog but it comes back after a little while and it is extremely annoying not to be able to enter a battleground or leave the queu at will, as well as being able to inspect someone. I am also not able to invite people to parties by right clicking their name on the chat screen.

It's an addon changing the current map level. There's a workaround in 2.1.2 for it.