Same issue, can't enter instance for either story or class quest.

Jakobi Drue
NA-Gilgamesh

The Company You Keep (Twin Adder)
- Screen goes black and looks to load, but doesn't
- Get red text message "A system error occurred during event movement"

To Catch a Poacher
- My character's movement gets frozen, i can look around with mouse, but cannot use any commands, or even log out/exit game
- All hot bars dissapear from UI
- Can only become unfrozen when attacked by an enemy, at which point i am told that I am under attack and cannot complete my action

Been an issue all day, even after maintenance.

Thx!