Part Scores Not Loading Correctly

Hello, I have recently had some issues with part scores in Musescore not loading correcting, For example, if I put a crescendo or sometimes a slur in the main score and open the part files, those components don't appear. I do not know why this is happening and is an issue for me cause I use Musescore to produce the scores/audio to submit compositions for stuff such as competitions. Any help would be appreciated, thank you!