Mods that are locked to custom difficulties can't be played

[Willio2000]

Issue Checklist

• I have properly named the issue
• I looked in issues/discussions, if my question was previously anwsered

What is the preset selected?

Full mod

What are the contents of the latest .log file? (if applicable)

No response

What is missing?

nothing is missing

Missing files checklist

• I have checked the converter supports these files
• I have checked both directories, the original and converted one, and they aren't in the converted one

Additional Context (if applicable)

The converter works properly, however, you can't play a mod if it has a difficulty that isnt easy, normal, or hard. you can't access the song in story mode or freeplay. you have to change the difficulty to hard by hand in order to make it playable and make it appear in the story mode menu.
(ex: 17 bucks mod, the difficulties on all the songs are "buck")

[tposejank]

Similar to #13, but only this issue. Practical solution is in #13, but will be noted that custom difficulties often have issues