Alto Sax playback

I've noticed that in nearly every score I have that includes an alto saxophone part, the musesounds playback is extremely glitchy. It will hold notes out to sometimes twice their written length, distort notes, and sometimes just not play them at all. These glitches are consistent in certain measures and scores. It only does this with the alto sax. I haven't had any major issues with the tenor, soprano, or bari sax playback. Is there any way to fix this?