Guild Wars 2

This has happened twice already, once when i first started playing and now in a dungeon. Somehow, i lose control over what i can target, the only way i can target enemies/allies is with the tab key, i cant use my mouse click to target something and the only fix is to close and open the client again, any help? Pretty annoying when you cant do this.

I am encountering this very often myself.

Unable to target through clicking, can only target with tab.

Any news about this? Happened me again, it is very rare, but it happens, maybe has to do something with alt tabbing?