Minecraft villagers can't multiply?

Hi. I have created an artificial village on our server in the Minecraft 1.14.4 where there are now 2 villagers. There are about 10 beds available and the villagers have several stacks of food in their inventory. But if the villagers try to multiply, then the heart particles will come over them, but nothing will happen until the storm clouds appear above them. On the Minecraft Wiki is that that happens only if not enough beds are available, but I have more than enough. I've already tried to put the beds, did not bring anything. Can someone tell me what to do? Is it possibly a bug?

Does your village have enough doors?