Chart editor Bug Report: Chart editor loads wrong variation even when you select an erect remix or pico mix

[Prod-42]

Issue Checklist

• [X] I have properly named the issue
• [X] I have checked the issues/discussions pages to see if the issue has been previously reported

What platform are you using?

Itch.io (Downloadable Build) - Windows

If you are playing on a browser, which one are you using?

None

Version

5.0.0

Context (Provide images, videos, etc.)

When you start playing a song and select the erect difficulty or a pico mix, the chart editor loads up the normal difficulty instead of the one you selected.

Steps to reproduce (or crash logs, errors, etc.)

https://github.com/user-attachments/assets/673a547f-71b9-4cfa-98f8-d49aa4b5fe42

1. Select a song with an erect difficulty or pico mix
2. Open the chart editor
3. The chart editor opens the wrong difficulty
4. That's it!!