"Play At Current Beat" off by over a measure

[shenjoku]

I'm trying to edit a chart for a song and every time I try to use "Play At Current Beat" to test a small section the music is always off by over a measure EXCEPT for if you start at the very beginning of the file. Does anyone know what might be causing this or how to make it work correctly? It's making it pretty much impossible to work with =/

Here's a link to the WIP: Click Me

I've barely started it.