Contradiction with Numbers 35:2
This verse contradicts 1 Chronicles 6:64 because it specifies that the Levites were to be given cities to dwell in along with suburbs for their cattle, rather than the "suburbs thereof" concept mentioned without detailing cattle-specific areas.
Numbers 35:2: Command the children of Israel, that they give unto the Levites of the inheritance of their possession cities to dwell in; and ye shall give [also] unto the Levites suburbs for the cities round about them.
Contradiction with Joshua 21:1-2
These verses describe the Levites petitioning for cities and suburbs more proactively, whereas 1 Chronicles 6:64 portrays the giving of cities as already established without the need for a petition.
Joshua 21:1-2: Then came near the heads of the fathers of the Levites unto Eleazar the priest, and unto Joshua the son of Nun, and unto the heads of the fathers of the tribes of the children of Israel;