And since i cant do videos here.
My onedrive link for video evidence - https://1drv.ms/v/s!AlxeY4sRgcePrZwtPGGqB7AzsZ_J_Q
All this is centralized in 1 area.
Indefinitely "building terrain" after entering nether portal on realm
Huge Chunks of World disappearing!
Areas of the Nether not generating, use of a portal in these areas cause client errors.
Chunks no rendering in Bedrock Realms
Chunks are transparent in Realm, log out and back in, still invisible.
Converted world will not load properly in 1.9 and 1.10 - Bedrock Realms