Gewehr 1-5 Mastery Assignments IV, V, and VI give incorrect rewards

Product: Battlefield V
Platform:PC
Please specify your platform model. PC
AMD or Nvidia Model Number NVidia GTX970
Enter RAM memory size in GB 16GB DDR3
Which part of the game is the issue happening in? Game Menu
In which game menu were you when the bug occurred? Assignments
Please select your region North America
On which server did this happen? All
When did this happen? (dd.mm.yy hh:mm) 21/11/18 15:24 PST
Summarize your bug Gewehr 1-5 Mastery assignments IV-VI giving "Mint" items instead of "Gold Plated." After Mastery Assignment III it started giving Mint duplicates and after Mastery Assignment VI I stopped receiving Mastery Assignments. It is currently impossible for me to obtain the Gold Plated Stock, Receiver, or Magazine.
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? * Start at Gewehr 1-5 Master Assignment I for the Gold Plated Muzzle * Get through Master Assignment II for the Gold Plated Iron Sight * Get through Mastery Assignment III for the Gold Plated Handguard * Get to Gewehr 1-5 Master Assignment IV * See that it gives the Mint Stock * Mastery Assignment V gives a Mint Receiver * Mastery Assignment VI Gives a Mint Magazine
What happens when the bug occurs? The wrong rewards are given for Mastery Assignments 4-6 for the Gewehr 1-5.
What should be happening instead? Receiving Gold Plated rewards.

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Since I didn't screenshot/record when I got the magazine as a duplicate, and since I can't go back and view my already completed assignments, all I can do is show a screenshot of my current proficiency assignment (obtained at level 5, these normally give Mint items) and the fact that I already have the reward.

Gewehr 1-5 Proficiency V gives the Mint Stock as a reward: https://i.imgur.com/uRXXJWH.jpg

I already own the Mint Stock for the weapon: https://i.imgur.com/5QRrM7p.jpg

I also already own the Magazine (https://i.imgur.com/S5kimKk.jpg) and Receiver (https://i.imgur.com/0U4yXMn.jpg) although I have not completed Proficiency Assignment V and VI respectively.

It is currently impossible for me to obtain the Gold Plated rewards from Mastery Assignments IV, V, and VI which include the Gold Plated Stock, Receiver, and Magazine. This hasn't affected any other weapon I've come across, the Selbstlader 1916, Lewis Gun, and MG42 all had their Mastery Assignments correctly rewarded. I have seen others with gold plated Sturmgewehr 1-5's and Autoloading .35s so I assume those work correctly as well.