Playback problem in MP3
I've been using Musescore regularly for a couple of years now producing SATB arrangements for our choir. I can't resolve a playback issue in MP3 format that I've never experienced before. The piece looks right, plays back fully in Windows Media Player and in Dropbox (whatever that uses), but in iTunes the playback stops abruptly after about 28 bars (its a 64 bar piece) and starts playing the next piece in the playlist. I've deleted bar 28 in Musescore and re-written them, saved them online, converted to MP3, but the same thing happens but stops on the next bar ie. bar 29. I've scrutinised for obvious errors, found none but there must be something hidden in the bar that I can't see. Any thoughts?