Yep, I have exactly the same problem. I tried steam-> search for corrupted files and I also Deletet all save files and all campaigns, startet new campaigns... dit nothing. I didn't delete and re-download the whole Game files, because my I-net is slow.
Pictures:
https://yourimageshare.com/ib/UQc3GhDoeS
https://yourimageshare.com/ib/Khs1UiyRj6
https://yourimageshare.com/ib/G2nlj5SaMq