The bug
Superflat villages don't have grass paths as of snapshot 18w06a.
Linked issues
is blocked by 1
is duplicated by 25
Attachments
Comments 14
I believe it is only effecting super-flat villages as this problem has not occurred in any default world village.
Can reproduce in 1.13.1-pre1 (there is also a bug with /locate, but that needs to be filed in another ticket)
@unknown: that's a known bug, MC-129433.
I noticed that when you update a superflat world from 1.12 to 18w43a, grass paths in villages get replaced with grass blocks. The villagers that were standing on top of the paths will get stuck in the grass block.
Can only confirm for superflat villages for 18w06a, did you experience it with other world types as well?