How to update the audio on my score?

I wanted to change some things in my score after uploading, but after I uploaded a new version using "Update this score" it still kept played the old audio without the new changes. How do I make it generate a new audio track for my score? Is there any way to upload my own audio file without needing a YouTube link (i.e. uploading the MP3 that I exported on my PC)?

Here's the score I'm trying to update: https://musescore.com/user/10577706/scores/11702032
The discrepancy between the audio and the score is most obvious at measures 64 and 65, with the audio in a completely different octave than what the score shows. I'll also attach my MuseScore document and the my own MP3 export.