Playback skips/jumps in iTunes 12.5.4.42
Ever since upgrading iTunes to version 12.5.4.42, I've been having trouble with some tracks not playing back properly. What happens is that the song in question will be playing normally, then a few minutes in will suddenly either skip a few seconds forward in the song, or abruptly jump to another song altogether -- sometimes to the next song in the current album, sometimes to a song by a different artist altogether. So far I've only seen it happen on comparatively longer tracks, seven minutes or longer. I've tested the tracks in question by playing them back outside of iTunes via Quicktime, and they play back there without any problem. Anyone else having this issue, any guesses what might be causing it?
MacBook Pro, OS X Yosemite (10.10.5), 17", late 2011, 64 bit Intel