Notenames added on MuseScore 3 disappear or corrupt when uploaded and viewed on iPad Musescore application

OS: macOS 10.15, Arch.: x86_64, MuseScore version (64-bit): 3.3.0.24090, revision: 4761df6

I’ve recently downloaded the iPad application in order to play scores that I’ve uploaded to my private MuseScore account with the note names added on to them. I’m encountering a problem however. When I add the note names on my computer as per the;
“ Right click on stave > Stave/part properties > Advanced style properties > Notehead scheme: Pitch names > OK > Apply > Ok “ function it works perfectly on my computer, when I upload the score to musescore however and try and view them on my iPad application a lot of the notes turn white which is frustrating as I cannot sight read properly.

Thanks in advance for your help :)

I've attached a photo of what the score looks like on my computer after i've added the named note heads and then what it looks like when I try to view it on my iPad.