As you can see I created both a Grooming Station and a Shearing Station for my Dreckos, but both of them do not work, they simply say "No Critters Available", and the room has been constructed for about a day. And I prioritized the Stations high to begin with so that they get well treated, but this bug seems to be causing my dupes to ignore this room.
Steps to Reproduce
I am betting it based on having too many Ranching Rooms, so maybe try to construct multiple Ranching Rooms, also my game is on / about Day 800, so that cannot help.
This issue has been closed either because it is not a bug or does not belong in the bug tracker.