Musescore not exporting audio

I made a score using musescore 3 about a few years ago, then when I updated to musescore 4 my file won't export with audio no matter if I choose MP3 or .WAV. I've been fumbling with this issue for months now and I refuse to let this score go as it's my best work yet. I looked all over the internet for months using every "setting" and "method" everyone has ever said and still nothing. The sound font is saved as "musescore.general.sf3" and I have the GHZ set at 40 (353GHZ). I've tried debugging it and I tried converting the audio files into other formats. No matter what the score will not save with audio! It just says "0 minutes long" Everytime I try to play it. It's literally saving nothing into the MP3 file. The only thing I can think of next is downgrading back to musescore 3. I will update if it works or not.

P.S. they export fine as midi and as PDF but not MP3 at all!