Grace Note Problems
I'm not sure how to explain this, but when I put in a grace note at one spot, it played longer than the same grace note in other places in the music. Another problem is that the measure before that measure skipped to the grace note on the third 16th in the group of four, then went back and played the fourth 16th note and continued. Basically it jumbled the notes without movie them.
Comments
As usual when having trouble with a specific score, it is difficult to help unless you post the score. Also say what version of MuseScore and what OS.
Grace note playback depends on what type of grace you use - appoggiatura versus acciaccatura - but also the length of the of the note you attach to. Appoggiatures are *supposed* to take half the length of the note they are attached to. So maybe this explains what you are seeing. If not, then please post the score and maybe someone will be able to help.