After a recent update (end of last week) my Pantheon-Terminal has now a weird behavior: When I open it, it is very shortly transparent but immediately gets opaque after that (maybe not even half a second later). Before, the terminal just stayed transparent, like one would expect.
I'm actually not sure if the update was an update of pantheon-terminal - but I think that there was no update for it, so probably some update for some other component of pantheon is responsible for that.
Does anybody else has this problem too?