I recently rendered a brand new 1.8 world having been waiting for this for a while. I rendered two worlds and the first world rendered fine but after creating another with the seed: 7125809109234166653
upon rendering I started in a normal jungle but I flew a bit away from starting spawn and found a leafless forest. This I didn't find odd since this was common rendering from time to time for me on old worlds but upon flying to a desert I found orange glass panes everywhere and oddly enough a minecraft witchery mod circle stone generated. This interested me and upon flying further out I found an acacia stone granite and the new blue stone generated in large mountains but it seemed odd that this wasn't common or else it'd have been posted already.

recreation:
try rendering a world with the seed supplied above, I have no mods for 1.8 and i rendered a creative regular world for building.