.9 world gets the "out of save space" bug after a few minutes in the .10 update

With our .9 game world, if we load it into the new .10 beta release, after a few minutes we get the "out of save space" bug, and the world closes to the menu.

Additionally, when in the menu, the storage option is completely missing. The host system also has 161 gb free.

You can download this world from my previous bug report comments link:

https://bugs.mojang.com/browse/MCPE-44345