A few days after I purchased a Minecraft Realm all villagers completely disappeared. All other mobs are present in the world including zombified villagers, however, if you heal one of the zombified villagers they disappear immediately. This is very annoying and is causing much frustration. It is completely eliminating the ability to trade with or heal villagers.

As I traveled in game thousands upon thousands of blocks searching new villages I expected to find villagers eventually.

But the longer I played the more I realized that there was some sort of bug preventing villagers to be present in my realm world. My friends and I have hundreds of hours combined on this realm and we have not seen a single villager ever since the first day we began the world.

Steps to Reproduce:
I do not know how to reproduce this problem. but it is still happening on my realm. also looking at Facebook forums many people are having the same issue that I am, and they also don't know how to fix it.