Audiobook Files Won't Play In Order

I listen to a lot of audiobooks on my phone. Sometimes I'm ripping them from CDs I buy sometimes I'm getting them online. The problem I have is the tracks won't play in the right order on my phone. They will on my Mac. When I load the tracks into iTunes I open Get Info, I set the Track Numbers & Disc numbers under the info tab, I change the Media Kind to Audiobook & check Remember playback position, Skip when shuffling, & Part of a gapless album under the options tab. And select Yes where appropriate. The files are in the right order on my computer. They will play in the right order on my computer but not on my phone. The files are in the right order on my phone. If you start playing a file you have the screen that shows the album art. If you tap the little screen comes on that has the little ticker with the length of the file, and the play options. Above the ticker it will say 1 of 8 or 2 of 8 or whatever. The second number is always the number of tracks and it is right. But the first number doesn't always correspond to the actual track # you are playing. I might be playing track 32 and it says 1 of 32. It doesn't make sense. Why will it hop from 1 to 16 to 32 to 2 to 5. I don't remember it doing this before the new version of iTunes came out. It's very frustrating that I have to manually pick the next track for it to play since it won't just go to the next track.