This is something I tried which seemed to fix the problem hope it works for others. What I did was logged into the new xbox one loaded the game attempted to sync which it failed told it to sync to last save. Then I network transferred minecraft from the old system and restarted the console on the new system when it was done. When I loaded the game after everything was there. Hope this helps
Vhariel Seraph
This is something I tried which seemed to fix the problem hope it works for others. What I did was logged into the new xbox one loaded the game attempted to sync which it failed told it to sync to last save. Then I network transferred minecraft from the old system and restarted the console on the new system when it was done. When I loaded the game after everything was there. Hope this helps