I have been playing only on my second console for a few months now as when I go to my home console (on the same wifi network) it repeatedly tells me 'your save has taken too long to sync to the cloud' or 'your other console is not syncing to the cloud) I have both consoles next to each other both plugged into the same router/modem via ether net cable and all other games have no issue.

Spoken to @xboxsupport on twitter who cannot find a fix and suggest it is an issue at your end?

Made copies of my world's and deleted the older versions which at least started bringing up the 'too long to sync screen' before that I only had 'this console nov 30th' or 'no save data found online'.