Since there doesn't seem to be a search option on the forum I'm not sure if this has been reported already.
If you sit on the bench in Cyseal (near the wooden platform by the boat apparently being repaired [the NPC with the 9in nails, hammer, etc.]) when you stand you are placed between the bench and the wall behind it and stuck there unable move.
The only solution is to reload an earlier savegame.
