The game contradicts it self

https://imgur.com/a/YzolJZ4

As you can see the campfire challenge is completed in game but not on the main menu.

My fix:

1) In Origin right click on BFV, then click game properties, and then on the cloud saves tab turn that off by unchecking the box and save.

2) Go to C:\Users\username\Documents\Battlefield V and move the settings folder elsewhere like your desktop.

3) Start BFV. You should be asked to change your brightness and sound settings then it will load you into the intro to war stories. Quit to the main menu as soon as you are able to.

4) Load the war story that you are having issues with. If you have a stuck challenge on the second or third mission you will need to play through until that mission. I just chose easy difficulty so I could quickly run through the missions.

5) Complete the challenge/collect the letters that were glitched for you.

6) At this point I finished out the rest of the missions in that war story. I'm not sure if this is required though. Once back at the main menu, you now should have the check mark indicating that the war story was fully completed.

7) Quit BFV. Go back to the BFV folder and delete the settings folder that the game auto generated. Then move back your old settings folder that you moved from the BFV folder earlier. Turn back on cloud saves.

8) Launch the game and go to shipments under armory and your melee weapon should be waiting for you.

As far as why this happens, my guess would be the game not syncing with the server that you completed the challenges/collected the letters. So by deleting the game save and re-doing the challenges/collecting the letters, you give the game another chance to sync with the server.

Hope this helps!

Edit: Please check the comments for console fixes. Other users have posted solutions for Xbox and Playstation.

Edit 2: While playing the new war story, The Last Tiger, the do not repair your tank challenge from the first act glitched on me. This fix worked once again for that. I was able to claim my tank skin after using this method. I want to note that after I completed the bugged challenge, I did finish the act I was on but did not do the other two and I still got my tank skin.