Tromboncino M28 - Started with it at rank 10

Product: Battlefield V
Platform:PC
Please specify your platform model. PC
AMD or Nvidia Model Number 1080 Ti
Enter RAM memory size in GB 16
Which part of the game is the issue happening in? Multiplayer
Which part of the mode? Breakthrough
Please select your region North America
On which server did this happen? Official DICE server
When did this happen? (dd.mm.yy hh:mm)
Summarize your bug I unlocked my Tramboncino today and before I even used it, the weapon was at level 6. Another person reported it being at level 4. It's as if it's looking at a different, non-level 10 gun and copying its level. I was able to fully upgrade the specializations right away. Which begs the question, am I able to unlock the Predator skins if I'm already passed the first 6 levels?
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? Unlock the Tramboncino for the first time, and deploy.
What happens when the bug occurs? The gun will level up from 0 to a random higher number.
What should be happening instead? It should stay at 0.

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I unlocked my Tramboncino today and before I even used it, the weapon was at level 6. Another person reported it being at level 4. It's as if it's looking at a different, non-level 10 gun and copying its level. I was able to fully upgrade the specializations right away. Which begs the question, am I able to unlock the Predator skins if I'm already passed the first 6 levels?