Camera randomly rotates

Hello everyone,

I made an spline in my drawing for a camera to follow along and set its aimed target at the center of my assembly. It goes through the spline but it randomly does a 180 about half way through for 1-5 seconds then finishes it and goes back to normal. The first time I did it I never had a problem, but wasn't able to save beforehand, now that I've re-done it, I have this problem. Here's a screen shot of the camera's settings, I didn't put any kind of rotation or anything on it.
(http://puu.sh/1pVsx)

SolidworksGeneral