Assault class elite badge and 1 remaining assignment

I have the same issue. Completed the advanced assault assignments but no badge. Says I have 2 remaining

same here

Same.... so many bugs with those challenges

Glad I'm not the only one. Upvoted.

restart ur game hopefully it works for u like it did for me

Just got final assignment done - got the skin and title but the red assault badge is still greyed out and says 1 more assignment. Done multiple restarts played more games but nothing changes this status. 
annoying! 

Its the same on Recon elite badge in case anyone was wondering. Probably all classes 

same issue lol, nothing i can do to fix it. have for recon and assault, same issue for both.

I left it for a day and after a reset it seems to have updated and allowed me to select the Assault Elite Badge to Profile.
Try Restarting game, let the server update the Client. It might take some time if the checks are very infrequent (if for some weird reason they decided to save computation time by only checking it every X time-frame larger than everything else. Ive seen some weird code in my time, i wouldnt put it past them)

I cannot prove this, but I believe that there are hidden assignments. While playing a see assignment progression/completion that are not listed anywhere in my challenges. Although, I'm looking this up to understand why I have the issue also.