Stuck on. "Converting World" for over 10 minutes!

I got stuck on. Converting world for over 10 minutes! And the close button didnt even work.

EDIT : Because of this! I made a working preset!

Enjoy

2;1x7,10x24,5x12;2;village(size=10 distance=32)

EDIT 2: Nailed it! Its because of the plains biome. If you load up with my preset! It will work fine

Best wishes!

Liam

FOR FUN 2;1x7,10x24,5x12;2;village(size=200 distance=32)