[Orokin Derelict Exterminate Ejection from the map after opening a vault.]

So, upon opening a derelict vault in the first mission, as Volt Prime with speed activated, I was ejected from the vault door and placed two rooms away in the ceiling. The second time I tried to open the vault I was ejected from the map completely and fell through the floor. Both times the vault did open but it was odd that I was displaced so greatly from the door. In a third derelict exterminate, a friend of mine opened the vault and was placed at the beginning of the level. All of these instances are mild hindrances but it is strange that this issue seems to be recent with the newest patch. All missions were derelict exterminates and I was playing as  Volt Prime while my friend was Nyx. I was carrying the hobbled key and he was carrying the extinguished key, if that makes any difference.