News Bug Worlds & Add-ons disappeared or not showing after updating new Minecraft beta version

I found this bug on game on this version 1.18.0.21 Beta it not showing my Worlds and add-ons
It say "Did your world disappear"....
But when I check in file explorer "games/com.mojang/minecraftWorlds/ its Exist.Why does the World exist while it does not exist in the game
pls vote this issue to resolve the problem

Sorry for bad language.