When I use the Branded riftstone to enter the rift I enter the instance, kill the riftstalker, exit the instance via portal and find myself in Tyria. Then the new event starts to enter the rift again, the event is successful i enter the rift, the rift loading screen comes up and then... the map I entered from loading screen appears and I'm back in Tyria. No was to enter the rift. Even if I have another riftstone I can't enter. Is that a bug or "as intended"?