it seems as though the vertibird can trigger quest dialogue while flying over the respective npc. i encountered this while flying toward docks for "render Unto Caesar" before i was able to land the game froze in midair and started the dialogue with the quest npc breaking the game completely. perhaps there needs to be some sort of safeguard that prevents a flying player from triggering scripts that activate on entering an area
looks like this bug can be triggered by flying directly over any npc with a quest script that directs him to chase you down and begin a conversation
Edited by mikeloeven, 25 August 2013 - 08:59 PM.