Losing wolds

There has been a strange problem with YouTuber Theyab, his world has been deleted automatically
The world has released update 1.18.2. He downloaded the oldest version of Minecraft 1.0, in order to shoot a clip when it was filming and went back to the 1.18.2 update, he didn't find a world even in the files not found
There is also a note that he has another flat world, but he stayed and nothing happened to him

Regardez cette vidéo : « كل عام وانتم بخير .. عيد سعيد » https://www.twitch.tv/theyab17/v/1436105774?sr=a&t=674s