Swing not working in playback?

Anyone else having this issue? Anyone know how to fix it? The first half of my composition is straight but it changes to swing a little more than half way through. In playback, there's no swing. It's just straight sixteenth notes and it sounds stupid. I've tried everything, but I can't figure it out. Plz help :(

Edit: it's only working for eighth notes--but I need swing for sixteenth notes. Is that possible?