A similar issue was reported in MCPE-47277.
I downloaded this from an source like MediaFire. I didn't get the world from Legacy Console Edition, because I actually don't own Xbox One Edition.
Anyways, thanks to Don Cox for your support! 😊
Sorry! I searched before creating and didn't see an issue about this! I apologize for this! 😊
The dupilcate was an accident. I'm sorry! 😊
You know, it only crashes when you downloaded an old world from any source. It is fine on normal worlds.
Â
That's Pocket Edition (the screenshot)
It's stuck on that screen, nothing seems to work, and returns to home after about an minute.
This happened for me, if it did or didn't to you, please let me know.
This is still a problem with the current update, 1.12.0.11 Beta.