I have been having issues where I keep get an error saying no space on Xbox one for save data. Seems that as you progress in the game the saves must be getting bigger resulting in less save slots as compared to at beginning of game....hope I finish game before the save file is bigger than 365mb ....just had this confirmed by Xbox ambassadors.

Update...I am now down to 6 saves...so it seems it's not due to a 365mb save limit...something is not allowing saves to be made...so at this rate I won't be able to complete the game as the save file limit will be exceeded...

Did you read my comment on your other thread?