Blu Ray Motion Menu Stutters/Skip at Loop Point

I have created a blu ray project with a motion menu that is 1 minute 13 seconds (01:13:12) long. I have set the loop point to 00:08:10. When I preview the project the video and audio skips or stutters (as in it stops playing for half a second and then starts playing again). It happens right at the loop point - where the buttons come in. This also happens when I build the project to an iso image and play it back with my blu ray player software as well as after I burned the iso to disc and tested it on my BD player.

Screen shot of the motion menu settings:

The text for the 2 buttons on the menu (Play / Episodes) are part of the video and the button highlights are dotted lines underneath the text which are the (=1) layers in photoshop. I also have a rectangle shape layer in photoshop for each button to create clickable space for instances where the blu ray is being watched on a computer.

Screen shot of photoshop menu layers:

Any idea what could be causing the motion menu to skip like this at the loop point?

Thanks!