Large world won't load in newest versions

Basically the world I want to play won't load in the newest versions of Minecraft bedrock (1.13 and up). It seems to load in 1.12 but won't save world changes when I log out...

 

https://mega.nz/#!UgQEDCwK!nUo–Ltgl_iOGN91SCgOal9T3UjNDy6mB_gjLAjduDg

 

Here's the world download