I got stuck again, later in game, in some grotto i had to insert a lever then to trigger it, then same as with the Sassane invoke bug: the view changed to the magical barrier that removed on a door close to me. Then nothing, same as here, the view didn't come back to my char and i couldn't do anything.

But i found a way through it !

When the bug occurred, i clicked on pause button (with a click on top of the right stick) then i clicked on the RB button to make appear the fast menu, then i clicked on START button to get the normal menu, and then i just saved the game.
I then had to click the XBOX button to go to the XBOX interface (Dashboard) because load option didn't work. Then i just restarted the game with this last save i made, and i went through the point where i got stuck. Maybe it will work at the invoke place too ? Well try it and tell us, someone smile