After finishing a mission I was disconnected right before the challenge list popped up.
Pressing the RETRY button immediately reconnected me and correctly applied the score. But right after I loaded into main menu and tried to start another mission I got a “Error starting contract” message.
Now I can’t start any missions from Hitman 2, Legacy pack or contracts because of the very same repeating error. The game basically became unplayable for me unless I try to start in offline mode.
P.S. I would like to know if there is a place where I could submit an actual support ticket.