After 1.18.30 update I played a while in my survivor world - inclusivelly, and finally, found a witch hut.
After 15 minutes, and after a freeze/crash I start registering very large dificulties open that survival world.

Is a 150 mb world +/-

Now 80% of the times it gets an error at "creating terrain", and closes the app.
When sucessfully enters, after few minutes the game cracks and closes with the same app error.
I managed to duplicate versions of the map on nintendo switch minecraft game interface, but all have the same issues.

I've created a Realms account and managed to upload the world to Realms and seems to be working fine, acessing via same user on switch and other users on PC version.

On nitendo switch, same user account, other light creative worlds seems to go ok. 

On same nitendo switch, other user account, all survivor and creative worlds seems to go ok. 

I sucessfully downloaded back to switch the same world from the Realms account that i previously uploaded, but back in offline mode or "off Realms" it reveals the exactly same problem.

The world is unplayable on nintendo switch. 

Thank you!