Villerger breeding?

[GamenMetMark]

I have build a villager breeder on my One block but the breeding is not working.
I think this is a bugg or a blocked feature.
Can i please get a answer why it is not working?

 

[cloakfox]

https://www.mcfoxcraft.com/support/bug-report.1/select

Gonna need more info in order to fix, for example how your breeder works.