MI-240 Super hind repair system not unlocked 75/75 (600+kill mastery 4)

Product: Battlefield 2042
Platform:Microsoft XBOX One
Please specify your platform model. Microsoft Xbox One X
Are you using any software with an overlay? No
Which part of the game is the issue happening in? Multiplayer
Which part of the mode? Conquest
Please select your region Europe
On which server did this happen? All
When did this happen? (dd.mm.yy hh:mm) 2021.01.01
Summarize your bug Russian Super Hind reapir system will not unlock at 75/75 (600+kill) mastery 4 level
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? Create new account and grind the hind repair system.(or let my profile be checked if he may be one like this)
What happens when the bug occurs? Can't repair super hind
What should be happening instead? Reapir system unlocked

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I tried to ask help already in a mail many times but nothing did not improve what is a little bit outrageous so that 34990 HUF(80,36$) were found the game.