Nintendo Switch Market Place Puchases can't be downloaded - "Not Enough Space" message

My son has bought minecoins to purchase mods from the Market Place on his Nintendo Switch version of Minecraft.  He has successfully purchased and downloaded a few mods with no problem, but the last two purchases he made can't be downloaded and come up with an error saying "Not Enough Space - You do not have enough space available on your device to download the Alex Da Noob - Survival World".  We have 13.9GB available on the console and 109GB available on the microSD card, and the game has been moved to the microSD to try and help.

 

I have tried googling a solution and can see numerous people with the same issue going back over a year but no solutions offered.  Can you either resolve or let me know how I can get a refund for these mods that he can't use?

 

Thanks for your help.