Musescore 4 sounds inconsistent

I installed Ms4 a few months ago and I wrote several scores, but then several weeks later when I reopened them they sounded quite different, sort of robotic. This sound change persisted when I tried to create new scores. Last week I gave it another shot and new scores were back to the normal very nice sound, but the older ones stayed robotic. Unfortunately it has happened again; my music which sounded perfect before now sounds like it is being played by a computer (it is but you know what I mean). Any idea what's wrong?

EDIT: I have attached my score, and here is the link to what it sounded like before : https://soundcloud.com/liam-van-der-moezel/aot-score-8?si=76619e2666404…. I have no clue as to how to reproduce this problem. Nothing was changed as far as I'm aware between there being no problem and there being problem.