Individual parts play with all parts
I'm trying to create individual soundfiles (learning aids) in Musescore 3.
In Musescore 2, one simply created the parts (file -> parts -> new all), and then exported each part in the preferred format (I use midi and MP3).
However, when I do this in Musescore 3, the part shows just itself onscreen, as it should - but when the soundfile is created, all the other parts are there too. This also happens when using the "play" function on an individual part.
Is there a fix for this, please?