Villagers, as well as golems, disappear once I’ve left The village.

Any village I enter, as soon as I leave, my villagers, as well as the animals inside it and other friendly mobs, disappear. This has been going on for a month now, and I figured I would report it finally. For example, if I venture around for a while, I’m fine. But once I go to sleep in, or outside the village, I wake up to find not a mob in sight. I’m a IPHONE USER. And this was the only way I could submit my report. I hope you can resolve this issue for the PC MINECRAFT ADDITION.