Addons fail to install for menu customization

Every time I try to set up the menu customization option, the install fails, and on a 3 B+ with a Samsung 64gb SDXC card, the button does nothing. I have tried multiple different Raspberry pi 3B+'s and sd cards to no avail. Tests were done on both ethernet and wifi.

Pi 3 B+ with fresh osmc install
32 GB SDHC Sandisk ultra card
Also tried a 64gb SDXC Samsung card.

Regular Log:

Debug Log:

A post was merged into an existing topic: Http status code 503 while downloading addons

I merged your post with an existing post with the same issue.

This should now be resolved.