Musescore_General soundfont not playing due to crash and corrupt

Hello,
I'm using Windows 7 home and the latest Musescore 3.2.3.

I have the Sonatina_Symphonic_Orchestra soundfont and the Musescore_General soundfont both loaded on my synthesizer. My problem is that sometimes when I open up my score, only the Sonatina instruments playback; the Musescore ones have no sound at all when I play or click on them. This is my first time using a different soundfont, so I may have messed something else, but reloading the soundfonts, reassigning the sounds, restarting the program, and everything else I can think of isn't working.
The weirdest part is that it sometimes happens and sometimes doesn't. I quit for a day after trying to fix it, and the next day, it was fine. Last time I saved it, everything was working great, but when I opened it, I had this issue again.
The only thing I can trace the issue to at all is the synthesizer. Sometimes when I mess with the CC in dynamics, weird stuff happens, but sometimes not.
I have uploaded my file so that by you testing it I can know if it is my problem or Musescore's.

Some more info I found as I was messing around:
I opened up the back-up file that was saved. It worked just fine. Then, I skipped ahead in the score to another note and musescore crashed. I remembered that this happened when I opened this score the first time as well. Well now, my backup copy is corrupted as well, and I don't know what to do.

Thanks, and I hope this can be figured out!