Thank you Steven, I see that now.
I think I see where I was confused. When I try to skip to the next chapter, it doesn't go to the correct timestamp. This doesn't happen in Foobar (but Foobar also has issues with bookmarking). This audiobook has a cue file.
I understand that you get a million requests a day so I'm not so worried about the issue, but let me know if you want me to upload and send to you.