Xbox one bedrock world disappeared

Hi, a couple of weeks ago one of my main worlds on minecraft bedrock on xbox one has disappeared and i have no idea why, i even tried seeing if it was just my console but it had even disappeared on my girlfriends xbox too. I tried uninstalling and installing the game but nothing helped. I havent been able to fine any fixes for this on youtube or google as it only covers the pocket edition. I have a backup of the world but its quite far behind. Hopefully this gets resolved soon