Is “The situation upon first arriving in Jiangdong” true?

The official history Records of the Three Kingdoms, Book of Wu, Biographies of Zhang, Gu, Zhuge, and Bu, records: 'Xue Zong was appointed as the Minister of Selection, and he firmly declined in favor of Tan, saying...' However, Romance of the Three Kingdoms, Chapter 38, lists him among several renowned scholars who defected to Jiangdong, saying: 'Xue Zong of Pei County, courtesy name Jingwen... These several men all came to Jiangdong. Sun Quan treated them with great respect and generosity.'