Same… I was happy to see that bug report actually, since I was one VIP flight away from unlocking the VIP Charter Service specialization before all the VIP flights disappeared. If it was just me with the problem, it would probably never get fixed! Cargo flights still worked, so it forced me to learn the avionics of the PC12.
I’m seeing first flight missions pop back up today, so Asobo seems to be doing something behind the scenes to try and fix this. Hopfully you’re able to get back into career mode soon.