Well 31.40 version works in Xbox Creative.
BUT ONLY WHEN YOU UNINSTALL FORTNITE FROM YOU XBOX ONE
The original is 60+Gigabytes.
When you have unistalled Fornite, that means have 0.0GB in the screen
Now click install from the Microsoft Store and download of over 70+ GB is loaded
IF YOU JUST CLICK UPDATE YOU WILL GET 64GB
So you have LOST ABOUT 10GB OF CODE
For weeks put up the same message UNINSTALL FORTNITE FIRST
My Xbox One X works fine, in 31.40 going into Creative Works, editing characters works
Tell me the exact size of the download and the new lobby colour, and then will believe you have done this 31.40 install properly
If you have problems Publishing and synchronising with your Creative content then it might be your Xbox One Fortnite installation has become corrupted. Therefore before posting a message UNINSTALL FORTNITE and install a new fresh copy.
In UEFN the “Verify” can be done on PC installation. Therefore on Xbox One reinstalling is often the quickest answer
Finally remember for 32.00 and each major update like 33.00 and 34.00
you will need to UNINSTALL FORTNITE before installing a new version on Xbox One