Minecraft Crashes When Uploading World To New Minecraft

Hello, ever since I updated to the new Minecraft (Better Together Update) when I try to upload my world from the Minecraft:Xbox One Edition to the new Minecraft it crashes. It only goes up to 20% and then my world crashes. My world is only 5.5mb and I could transfer my smaller worlds without an issue. I know I'm not the only one. Please help and fix this it's very concerning. Thanks