Advent super-weapon not working

I have played entrenchment as advent for about four games now, and the advent super-weapon never works. It launches its burst of energy or what ever, but it does not affect culture on any of the planets that I shoot it at. Has aneyone else noticed this or is there just something wrong with my game and I should reinstall. I did not record any of the games however if you want I can play another and record it. If someone tells me how to record games that is.

P.S: grammer and spelling are not my storng points so if you have trouble understanding what I typed sorry.