The artist mission (4/4)

So I have done all the missions and now on my second to last one. I already have the 144k dmg to team completed but cant seem to get the next one. As a team destroy 14 wards. That's the thing I have already done that for like 16 games and yet not a single one of those were counted on the mission. Is it a bug or am I doing this wrong? Any suggestions plz. Thanks.