This isn't the same as the bug in 13w37b that directly DOESN'T generate villages, please do not put them together.
If someone feels this happens with his horse, try this issue
https://mojang.atlassian.net/browse/MC-16769
It seems its not that he despawns, he just goes invisible.
So they don't despawn... they become invisible? My horse is still alive then!
Hope this gets solved soon! Gonna try MC EDIT to find him, know the exact location where it was before dissapearing!
Ok, but if I take the fact that there's a very high number of villages that fail to appear because of the new biome mix and that leaves almost without villages the plains biome, ¿Can't that be called a bug? ¿Too few villages in plains biome maybe?
But thanks for the fast answer! I trully hope this gets solved. Its not fun that dry biomes have much more villages than normal ones.