Board Thread:Bug Reports/@comment-26061849-20161126213742/@comment-27219153-20170512004641

Well since its already necro'd, I might as well post a likely cause. If you're not using forge, then the dimensions folders are labeled DIM100 and DIM101 instead of MiddleEarth and Utumno. I believe Joetater looks in the MiddleEarth folder and since it doesn't exist, it doesn't find any.

Solution: Switch to forge while you do world resets.