Contradiction with Joshua 21:43
Joshua 21:22 mentions cities given to the Levites, but Joshua 21:43 states that the Lord gave all the land He had sworn to give to their forefathers, implying a completion of distribution, yet none of the cities of refuge were exclusively theirs.
Joshua 21:43: And the LORD gave unto Israel all the land which he sware to give unto their fathers; and they possessed it, and dwelt therein.