If you arrives the graveyard in that moment, when the 30 sec countdown just finished, and the others are resurrected, you will get a blank window, with no countdown, and the window will be blank forever, even after 5-6 resurrecting cicle, your countdown will not show.
If you close this, and try to speak with the spirit guide, he is uninterractable, so you can't get the resurrection windows from him too.. basicly because of this bug you are unable to resurrect in the battleground anymore, and you are stay dead if you leave the battleground too, which is another big fail, we are goes back to the world map in that state where we had in the moment of the joining. For example if i sit on the flight taxi when i join, and i leave the battleground as a ghost, what will be happen? ghost flight..?