Instruments reset whenever I reopen file, also crashes when changing instruments at times

Not sure if this has been reported yet, but whenever I reopen a musescore file, all the instruments reset back to piano even though they'll say the right instruments when I check the properties. I've been resetting this by just going into the menu and selecting a random instrument and then undoing it, then the sound comes back. Sometimes, this also crashes musescore though (changing the instruments)