Hi i have xbox one X

Using the XBOX version of minecraft off disc. 

My son has account linked as family, only for offline play for us as don't want to allow online play at his age. 

Have previously provided coins/purchased coins for him to get new worlds with no issues, however with most recent ones they do not download. Have about 11 worlds that he has tried and they are not working (listed below) and all show as "downloading".

Have reset console/power cycled to no avail, wasnt sure of other options, I think if i delete the saves from the console this will lose all purchases as we dont have xbox live account. 

Please let me know if any fix??

Snonstorm Simulator

Hollydale

The lost Civilisation

Minecon Earth

Lucky present survival

Ready Sled Go

Santas Gift Hunt

Grid Runners

Haunted Swamp

Prison Escape 2

Minecraft Inspiration Island

Catastrophic Pandemonium