Void Mission Doors Occasionally Won't Open

[Arendui1]

I was doing a Orokin void Tower 2 capture while after the first target, the door did not open. I remember it also happening on a previous mission and it was not the same type of key. It seems that some of the doors will occasionally bug and impede progress.

[Sarvan-EN-]

This is may be the Host is Lag.