I have been experiencing a bug with the “Maul” skill that comes with the Druid “Werebear” transformation skill. The “Maul” skill does not do any damage when used on enemies and when used on smashing crates/objects nothing happens the crates.
The player.log is showing lots of errors indicating that it cannot find the scripts or graphic effects for the Maul skill… plus quite a few other general scripting problems.
I would recommend you run the Game File verification process in Steam to make 100% sure your installation is not messed up.