Issue with challenges in War stories, can't complete them 100%

Product: Battlefield V
Platform:PC
Please specify your platform model. PC
AMD or Nvidia Model Number Nvidia Geforce GTX 960
Enter RAM memory size in GB 8,00 GB
Which part of the game is the issue happening in? Single Player War Story
Which part of the mode? Nordlys
Please select your region Europe
On which server did this happen?
When did this happen? (dd.mm.yy hh:mm) 18.01.2019 23:16
Summarize your bug Challenges or letters in different war stories, appear to be completed/not completed on menu screen or in-mission, but in-game they are the opposite.
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? Try completing the challenge: "Rescue the Resistance Fighter without being discovered" in the "Still and Silent act of the Nordlys war story. It won't register as completed, when completed in the mission, but in the menu it has a checkmark. If it doesn't happen for that challenge or war story, try completing challenges in other acts or even war stories, and see if it happens there.
What happens when the bug occurs? Nothing happens, the pop-up that tells you've completed the challenge doesn't appear when it should.
What should be happening instead? The challenge should register as completed in the mission and menu.

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Now what I think might be causing this, could maybe be the game not syncing with the server, where you collected letters and completed challenges. I don't have a lot of knowledge on this sort of stuff so that might not be the case at all, but I'm just guessing 🙂. I've left 2 screenshots showing the bug.