I have a question about In The Groove for PC

[PsyBird]

I have this problem with In The Groove for PC (like the title says):

I have 2 profiles in the game, but they share the same High Score.
Here's an example:
I have a profile called Paal Inge, and a profile called PsyBird.
And let's say the record is 80% on the song Charlene on the Paal Inge profile.
If I swich to the PsyBird profile, it will say that the record 80% there too, even though it's not the same profile.

Here's another way to explain it (and probably better):
Let's say I created two totally new accounts called 1234 and another profile called called ABCD.

Let's say I played the Song Charlene on the profile called 1234 and got 80%.
Then I switched to the profile called ABCD.
Then the High Score would say 80% there too, even though I never played on the account before.

How can I change this so the different profiles get their own High Score?

Thank you in advance for taking time to read this, and for helping me with this problem.