Posted a score, won't play back anything

I've uploaded about 10 sheets so far on the site (for piano) and they've all been working 100% normally and as intended. However I just uploaded a sheet for a few saxophones and a piano, and it doesn't play back anything. I'll press the play button on the website, it'll load for a split second and then will go back to way it was before I clicked. I have no error message or anything, and it doesn't say the audio is still loading either. I'm posting this about 10 minutes after I posted the score.

I can load the audio with the synthesizer as the audio source, but it plays the alto sax as a violin, and about 5-10 seconds in I get an extremely loud noise (seems to be the result of the glissando)

I was using 3 different soundfonts for different instruments, could that be causing it?
Is anyone else not able to listen to it or is it just me?

Thanks for any help!

EDIT: I can't seem to favorite any scores in musescore or follow anyone either? I can comment, and post scores (still can't playback). Could this be all part of one bigger issue? Not sure what I'm missing
EDIT 2: I guess that musescore recognizes Altos and Tenors from the particular soundfont that I'm using as violas and violins?
EDIT 3: After 3 hours, I still have no idea. Someone help me