musicxml issues | MuseScore

I have a musicxml score that I imported from FInale 27. It says it’s invalid xml. I highly doubt that.

One problem is all 4 layers are always imported, and worse, the slash rhythms aren’t correct. I’m sure I’m doing something wrong, but learning a whole new program is frustrating at the least. I’ve had finale since version 1, yes that long, and many, many scores from back in the 90’s.

I have a bunch of scores in Finale that I want to add to MuseScore (I’m a pro member), but I don’t want low ratings.

Here is the score on MuseScore: musescore.com/user/37896248/scores/7091367

I’ve attached the score from FInale as a pdf, and the exported musicxml.