Career Mode BJJ Core Ground Moves

Problem exiist on PS4 aswell.

CORE Groundmoves won't increase, everything else is on 4 stars in my carrer.

It's weird for Clinch aswell. Core stats are increasing in fights but not in sparring for me.

Product: UFC 4
Platform:Microsoft XBOX One
Please specify your platform model. Microsoft Xbox One S
What is your gamertag/PSN ID? Tonyt100
Can you tell us the date (MM/DD/YYYY) that you saw the bug? 20/8/2020, from day one from my point of veiw
What time did you see the bug? (HH:MM AM/PM) Almost right away
What is your time zone? GMT (UTC)
Which mode has this happened in? Other
Summarize your bug None of the 'Core' moves will level, core ground, core clinch, nothing core will move
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? Play the game
What happens when the bug occurs? No progression
What do you expect to see? A fix, this has been reported already I believe.

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This happens in career mode

Problem still exists.

BUT does anybody know what these CORE Moves are for? 

It seems to have no impact on transition/reversals or any other Wrestling/BBJ technique.

I think it has something to do with their Archetypes (CoreMove Level 2 Archetype has Level 2 Transition etc.)

This whole Archetypes / CAF / Carreer Fighter thing seems like a total mess tbh.

Me too, but EA won’t help.  They never do.