Realm and World both crash my Series X

I purchased an Xbox Series X on release day. I used my external hard drive that was originally for my Xbox one and brought most of my games over to the new console, including Minecraft. Much to my dismay, whenever I tried to open my realm world, which was made on the original Xbox 360, then converted to an Xbox one world, my series X power button light flashes a couple times, the game freezes and the Xbox shuts down. I literally cannot play on my world that I pay for monthly. This is exceptionally frustrating as I have done all the suggestions, I have completely uninstalled the game and my save data, I've tried downloading the world and opening it outside of realms and there is nothing I can do to play on it. Please fix this game as this world has over 10 years of progress in it.