Solved
I lost my progress in BF1
Some weapons became blocked again even after completing the challenges and then the challenges were reset I lost some weapons with this bug.
Hello RawrAreYou,
The issue could be related to leaving a server before the round ends, sometimes this can lead to loss of progression to stuff unlocked during the match. Unfortunately nothing much can be done, you will just need to play and unlock the missing items again (EA does not have the ability to return your progress).
