Contradiction with Jeremiah 21:9
This verse suggests that those who go out to the Chaldeans shall live, while Jeremiah 37:8 speaks of the Chaldeans fighting against and capturing cities.
Jeremiah 21:9: He that abideth in this city shall die by the sword, and by the famine, and by the pestilence: but he that goeth out, and falleth to the Chaldeans that besiege you, he shall live, and his life shall be unto him for a prey.
Contradiction with Jeremiah 25:12
This verse foretells the punishment of the king of Babylon after seventy years, contradicting the seemingly immediate dominance of the Chaldeans in Jeremiah 37:8.
Jeremiah 25:12: And it shall come to pass, when seventy years are accomplished, [that] I will punish the king of Babylon, and that nation, saith the LORD, for their iniquity, and the land of the Chaldeans, and will make it perpetual desolations. [punish: Heb. visit upon]