I had a village, I added villagers there, the residents chose sleeping and working places and chose the bell, NOTE: there were more sleeping places than the villagers themselves, they were located under the ceiling with a height of about 4 blocks, all unnecessary settings, such as the mobgrief were disabled and in principle, all the possible reasons that I found in other similar reviews were observed, but the inhabitants still did not reproduce, I gave them enough food for reproduction, the path to the bell beds or workplaces was not barred, the inhabitants simply did not reproduce, In addition to breeding, the farmer who was in the village did not want to cut the food but just stood by the composter, even when I gave him food, villagers can gather around the bell and talk, but there are no hearts.
Edit: the food i mostly give to villagers are potatoes