Minecraft Bedrock (Xbox) Failed To Sync World Data. Please can anyone help me!

I have an issue on my favorite world. I have worked many years on it. I try to load into it it gives me a message saying "Failed To Sync World Data" "The world is not fully synced or has been corrupted. Try playing the world on a console where it's in a good state and try migrating it again." I've tried about everything I could think of, but if I import the world over to Minecraft Preview, It works perfectly fine. That is the only way I've been able to see the world. I just don't understand how it works fine in Minecraft Preview. If anyone could help me, that would be amazing. Thank you!

:)