do you both have the same series of xbox? because from my research its been an xbox one s issue, everyone else seems to be playing already.
anyhow im going back to the store now for the third time to just get an xbox card and if the digital copy doesnt install im throwing the whole xbox out :'(
I use the XboxOne X, and my brother uses the standard Xbox One. So the difference could be in there, but still... very weird