I'm having the exact same issue (Xbox One). I've done all the steps in the Keep, I exported the desired world state tapestry to my account (all synced up), but whenever I try to boot up a new game (fully connected to my account) I'm only give the default option with a little box popping up telling me to log into Keep to make a custom one (which I've obviously already done).
Same to me I'm on Xbox one and it says I need to go to the website to do a custom world and I already did only shows default so frustrated about this put a lot of time into this game hope they fix it glad I'm not the only one though.
