I ALWAYS make sure nothing starts installing without my permission, even for any updates. Was that what the hub was trying to install? I have no idea, WHAT the things are that the hub or muze score says it wants to install something. I do not know what is VST instruments? I clicked on the strings and voice extra things on the hub at one point, which seemed like it might be nice to have those sounds. I use only the internal audio of the computer (I guess that is default. ) Nothing seemed to help so I uninstalled the hub and put the icon of muse score from the app folder in the rubbish bin. The muse score icon had also disappeared from the app folder, so I tried to install it again. One I was going to work on for the first time to correct the mistakes. As the icon was going from the bottom I tried to open a score. Double click on anything made the same thing happen. I tried to start it from the applications and also from a score. This afternoon the icon had vanished fro the bottom bar for easy startups. I didn't program it to start up anything especially, as far as I can remember.I sometimes started with opening a score, but also used the icon.

Here below I try to describe the problem in more detail and other things that might have been the problem.

I have described the problem a lot below but I really need to know Which version of Muse Score should I try to install to try to get started again? Your score of course now cannot be opened. But I do not know if it all is gone or not. As I assumed that the last update caused the problem. I tried to delete the muse score entirely earlier today, so I could start over.

For ipod instal MuseScore 4.1