Villagers Despawn or Disappearing When Logging In My Realm

Villagers De spawn or Disappearing When Logging In My Realm, When ever I log in Minecraft on my PS4 I will find 2 or 3 villager with or without a nametag on gone.

 
Expected result:
Villager will not De spawn or Disappear with or without nametag When logging in Realm.

 
Actual result:
Villager De spawn or Disappear with or without nametag When logging in Realm.