[MC-210382] All entities dissapear when loading a world in an older version if its saved in a newer version

I had an iron farm, a villager breeder and a villager trading hall. I had the world las loaded in 20w51a, and I have now installed optifine 1.16.4 but all the villagers are gone. When i loaded the world back in 20w51a, the villagers were back. But now I cant use my villager breeder, iron farm or my trading hall if I want to play with optifine. (Wich looks much better.)

Comments 4

Chris Mijnarends 2021-01-03T09:05:29Z

I tried to load the world in 20w51a and go into the nether. Then i loaded the world in 1.16.4 optifine, but the villagers were still gone.

Avoma 2021-01-03T10:40:05Z

This report is invalid, as your game was modified when experiencing this issue. Just to inform you, the bug tracker only handles problems that occur in a vanilla environment. If the issue persists without the use of mods, feel free to make a new report.

wobst.michael 2021-01-03T10:40:18Z

Downgrading isn't supported.

Chris Mijnarends 2021-01-03T15:25:22Z

Ok but how can i get my villagers back if i want to play with an earlier version because it also happened without optifine. So how can i get my villagers back with optifine?