I can't speak to that camera specifically, but at least with the DSLR line, it will split video after 10-12 minutes.
The reason for this is that writing the video out is a
slow process - slower than the speed you're recording at. So it stores part of the video in memory as it writes things out. Unfortunately, there's a maximum as to how much can be stored.
The best solution here is to figure out what the appropriate length of time for recording is, and then pause, stop recording, and start recording again