Shoreline edits not rendering

I've made some edits to the shore of some islands in Antarctica. My island features are rendering, but the shoreline changes are not. This is causing the map to look really weird. See here: http://www.openstreetmap.org/#map=14/-64.7702/-64.0699

Since I adjust the location of some islands, and moved the shoreline to reflect the current glacier retreat, the render is all messed up.

• Is there a way to force the shoreline to render?
• I've read online that the shore only renders twice per month - is that still true?

Thanks