There are two huge problems that are messing up Musescore 2.0.1 for me, one of them being somewhat ironic.
When I click on "Report a Bug" your website says "Page not found." As for what my initial bug was, I made a song in 4/4 timing, but one measure is just a half note. When I try playing it, it plays a half-rest after the note, which I didn't add in and can't take it out. Please, if you, while making Musescore, were writing the coding behind it, were using Javascript, I implore you to rewrite it in Python, it being, although easier to hack into, easier to program correctly, which is something which was not done entirely, if I'm not blind. Or deaf. And I'm not, because if I were deaf I wouldn't have this app, and if I were blind I wouldn't be able to type. And, in case you were wondering, I have not lost my sense of smell. Trust me, all of the deodorant in the world couldn't take away my smell, that's for sure. But I don't smell as bad as my brother Matt. But anyway, you can thank me when you get millions of dollars off of my Python Vs. Javascript idea. And you should learn to speak Chinese. It's a cool language.
Comments
Upgrade to the latest version: https://musescore.org/en/download
Take a look here: https://musescore.org/en/handbook/measure-operations#properties
if it can be helpful to you
This is not a bug. If a song is in 4/4, then all measures are normally required to have four beats. The exceptions are the the pickup measure and perhaps the final measure. When you created the score, MuseScore gave you an opportunity to specify the lenght of the pickup, but if you neglected to do so then, then the method shown above will allow you to change it later. This is also how you would shorten the last measure if necessary. In rare cases it might be appropriate to make other measures have only two beats; the same method is used in those rare cases. But the point is, if you wish to have a measure that has the wrong number of beats, it is up to you to tell MuseScore this - by default all measures will obey the time signature, as per the rules of standard music notation.
FWIW, MuseScore is written in C++. Neither Javascript nor Python would be as appropriate well for an application of this magnitude, IMHO.