Minecraft xbox 1 bedrock regain world

Is it possible to shift worlds in minecraft bedrock from ps4 to xbox one?

You can use the Minecraft Realms standard or try the steps below first when transferring worlds.

In Minecraft (Bedrock Version), select the Sync Old Worlds button at the bottom of the worlds list in the Play menu. This finds any worlds on the device from the Minecraft: PS4 Edition and displays them below the button.

Select any of the worlds that are displayed to convert it to the Bedrock edition.

After conversion, the world will show up above the Sync Old Worlds button, along with the rest of your Bedrock worlds.

Are you talking about a Minecraft world? Also, what version [Xbox one(the old one) or bedrock (the latest one with cross platform)]?. Usually if you're connected to Xbox live, all worlds sync up to the cloud, if you're playing on Minecraft Bedrock edition,
when you click play, there should be an option at the bottom to sync old worlds.

Busquei ajuda nos fóruns da Mojang sobre o problema. Aqui está o link caso queira acompanhar ou ajudar.

https://www.minecraftforum.net/forums/support/minecraft-bedrock-support/2979781-unable-to-join-the-world-xbox-one-bedrock-edition

[Translation-I sought help in Mojang's forums about the problem. Here is the link if you want to follow or help.

https://www.minecraftforum.net/forums/support/minecraft-bedrock-support/2979781-unable-to-join-the-world-xbox-one-bedrock-edition]

Together with Mojang support I found out the problem why I do not manage to import my saved worlds on my Xbox One X in the online purchased version of Minecraft.

The Minecraft Xbox One version that you can buy online in the Microsoft store is a different version than the Minecraft Xbox One version you buy in the store (DVD). The online version is the so-called Minecraft (bedrock code base on xbox one) version.

To import the saved worlds, you first need to export the worlds on the Xbox 360 Minecraft version, import them into the Minecraft Xbox One Edtion import and then import old worlds into the Minecraft bedrock codebase version. (Minecraft Xbox 360 -> Minecraft
Xbox One Edtion -> Minecraft Xbox bedrock codebase).

You end up with a version that you do not use, but you can then sell it via e-bay to fellow gamers who have the same problem.

So it is possible and fortunately not as Microsoft indicated earlier that the worlds would be lost.