Whenever I want to start a combat ability, it doesn't trigger and just gives me the fail message "you can not use this ability while out of combat".

Tried this with two different classes (60 warr, 10 zerker) by using combat ability shortcut as well as chat command (/discipline xxx), inside and outside combat and off course always had enough endurance. Is it just me or a bug?

Using SoD client, if that matters.