As a warlock, when I try to dismiss my pet by right-cliking it's portrait using agUnitFrames I get a warning about "accessing an interface option only available for Blizzard" (or something like that). So it makes agUF pretty useless for warlocks right now.
When changing options related to the display of mana bars in the frames they lose their bg color. They always look like empty mana bars, no matter the ammount of mana the target has. This can only be fixed by relogging.