https://www.dropbox.com/s/b87j4w5y2te778u/Screenshot%202016-01-25%2020.41.13.png?dl=0

I'm trying to set up a suitable set of configuration settings for both large landmasses and yet large oceans, and I came across this.

Is this near a coast? If so it's a current limitation of the biome repair system. We will be working to improve it, but not in this release.

Yeah, it is near a coast.

Marking this as a duplicate of #456. Please follow that issue for progress updates.