This is most probably a troll post, but I will do my best to answer seriously. OK we will need examples of when this happened and which map (in other words elaborate a little). It sounds like maybe it was against the AI, but it would be helpful if you could provide a replay?
On some maps the AI likes to stand about and do nothing. On Dom Pavlova I know if the AI starts near the river (in the south) they rarely move up to capture, but if they start in the North the AI acts fine (and very aggressive). Just use fixed points and swap starting positions if needed.
It might have been fixed, I haven't played Dom Pavlova in a while, but judging by Jowi's post I'm guessing it hasn't. Doesn't happen in vCoH on the same map funnily enough.