I have this problem since updating to the latest DCS version, DCS 2.9.9.2280 with mission 3 SAMbush.
I flew this mission 2 days ago, before the patch, and it worked fine. Flight lead, Popeye, starts on the runway and takes off immediately. Unfortunately 2 days ago, while flying this mission, I was stung by a manpad so I was retrying the mission today, after installing the patch. I have tried the mission twice, and both times, flight lead sits on the runway and does not take off, which obviously makes H4 tower tell you to wait before entering the runway.
I have flown this campaign before, this is the second time doing the campaign, and it was fine the first time I did this campaign too.
Have ED screwed up the campaign with the latest patch?