When Neville gets attacked, he doesn't always get out of the chair blocks, causing him to stay in place, even when pulled.
A similar issue arises when grabbing ghosts/spooky are put inside a wall's corner, when they hold onto the player, and then let go.

They'll effectively be stuck until they health reaches 0.

This can get fixed by having pulling ignore blocks if there's air 1 block further (so you can pull ghosts through, eg the candles in the mirror room).