When ever I leave the overworld be it death or portal chunks dont load

Thank you for your report!
However, this issue is Invalid.

This is related to a different project. Use one of the links below to go to the correct project.
– Minecraft: Java Edition — Windows, Mac, and Linux
– Minecraft Launcher — bugs about the Minecraft Launcher specifically
– Minecraft: Bedrock Edition — Gear VR, iOS, Android, Windows 10 (from the Windows store), Xbox One, Windows 10 Mobile, Fire TV, Nintendo Switch, and PS4
– Minecraft: Earth — AR Compatible Devices

Please have a look at the below issues and check if they closely match yours, and try searching for an existing issue, before creating a new one.
MCPE-63137
MCPE-44815
MCPE-63051

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