"DX BUDDiES PLUS" support needed

[Fun10165]

I was converting some charts from DX BUDDiES PLUS using MaichartConverter.
However, it keeps showing "System.IndexOutOfRangeException" and some random irrelevant errors.
I edited 22 to 21 in 22... in Music.xml, and it works.
And according to the source code, DX BUDDiES PLUS is not enumerated. I think the problem happened here.