Musescore op i-pad

After uploading one of my partitures to musescore to my i-pad, I get the following remark:

Hey, Looks like our new Musescore 4 sheet music files display is still on the way to the app.

Till now it's not possible to open my uploads.

How long do I have to wait till this problem has been lost?

Waiting for your answer.
With regards.. N.S.J. Hoogland