Got stuck in a wall and couldn't move

From the known issues: Monsters can sometimes be knocked back into walls, off cliffs, onto cave edges etc. by skills such as Shield Charge, Frost Wall, Heavy Strike, Sweep, and Leap Slam.

That can also happen to Players, and on top of that, I can't move out at all, I'm permanently stuck. I died just now thanks to this bug. An invasion boss casts Frost Wall, I get knocked back into the other wall, I get between frost wall and the scenario wall. Thought I could get away once frost wall dissipated, but nope, I was completely stuck in place, taking free hits from monsters. Ended up dead.