The problem seems to have been fixed by quitting and restarting Steam. I'm now at 8/9. So all is fine.
Could you publish some hints about the Tokyo raid directness medal. Specifically, which levels require the shortest path and which do not? There are contradictions in the accounts I've found online: some say the levels where all the towers must be killed as well as the levels where one must protect a VIP or the Transport are not taken into account for the direct route. But others insist that they are. And what about the levels where one is supposed to upgrade the units or to get to the bridge under 3 minutes?
So some general guidelines would be nice, for instance: for these types of missions, take the shortest route, but for those, you can take your time and kill everything if you want. It would make getting that medal a lot less frustrating.
I'm looking forward to hearing from you.