My post was marked as a duplicate, so I'm just going to comment here. Other comments show that villagers sometimes disappear, on my realm villagers are constantly gone. Even after curing, they vanish right as they become cured. There is no time between curing and gone at all. It's like there's a command block constantly killing villagers. Mojang, this is a game breaking issue, and should be at least mildly concerning.
My post was marked as a duplicate, so I'm just going to comment here. Other comments show that villagers sometimes disappear, on my realm villagers are constantly gone. Even after curing, they vanish right as they become cured. There is no time between curing and gone at all. It's like there's a command block constantly killing villagers. Mojang, this is a game breaking issue, and should be at least mildly concerning.