Only 300 tracks are displayed in the playlist when I share it

When I share my playlist of about 400 tracks. A friend clicks on the link and he has Apple Music 1.5.0.160 (1.1280.40963.0) on Windows (which is downloaded through the Microsoft Store) and adds my playlist. Then it shows only the first 300 tracks, but if you listen to the playlist in the mix, the tracks that are not visible are playing. What to do with it? Is it a bug?

Personally, on my iphone and windows pc all the tracks in the playlist are displayed.