Battelfied V error

Hello,

I believe I have a problem with unlocking weapons. I am assault lvl 14, in the company menu the stg44 is greyed out and locked, it say will unlock at lvl 13. On the progression bar is shows that is unlocked and I passed the point for the achievement. In the game when I'm trying to select it it says " available next round", but this is for every round after. Am I missing something or it's a bug. i have restarted the game, didn't help.