[Bug] game freezes when attacking with "Berserker's Axe" or "Berserker's Sword"

When attacking with an equipped "Berserker's Sword" or "Berserker's Axe", the game freezes and does not respond anymore. It only happens when using a regular attack, the game does not freeze when activating an attack trait like "Gambler's Strike". I assume it ties in with the "Maul" ability that the weapons provide. I don't know whether there are any other Berserker set weapons, it might be that they are broken too.