I thought so too, but didn't see any issues (I'll have a more detailed look). That said, a faulty AFCAD could be responsible for traffic not taking off, I agree, but would not explain AI traffic doubling up like that (at least nothing I know about AFCAD files would account for that particular problem).
Thanks.
If you have duplicate afcads then certainly the AI would mess up. Also I remember the last afcad we discussed on this forum was an absolute mess. It was once thought to make an afcad that routes AI both to and from the ramps. However, in practice this doesn't work well especially if the airport is busy and could certainly affect programmes that give taxi directions like PF3 and AI controller.
Your image suggests that the taxiway is part of the runway. So the wrong links have been drawn. Or it overlays a duplicate afcad with slightly different positions.
It's much the same effect when you see videos of vatsim where people have different sceneries and end up appearing to land on the grass or park inside the terminal. It could just be that your scenery doesn't match the afcad.