I'm not sure if this is connected to the recent update, but seems very coincidental. When I started up Mission 10, when selecting from the A-10C II campaign, I'm placed in the original A-10C. I though maybe it was a fluke with the mission, so I tried Mission 8 and 9, and it did the same.
I performed a repair build to be sure it wasn't something else, but it did not fix the issue.
Thanks!