Forgive me if this has been posted before, but I am experiencing a problem with audio dropouts in Movie Maker 2012, and would like to know if there's anything that can be done about it.

To be specific, say I mute the sound completely for one clip, and/or add music to said specific clip... then, for some reason, the audio in the following clip (which hasn't been changed) will drop out for a split second, before fading back in. If you start with that following clip in the timeline, the audio is fine, but if you play the entire timeline from start to finish, any clip that follows a muted clip or a clip with music added to it experiences this dropout in sound, and nine out of ten times, those dropouts also end up in the published file as well.

Why exactly does this happen, and is there anything that can be done about it?