Why is Lord Chaitanya not accepted as Lord Krishna by other sampradayas?

From: Annupriya

Hare Krishna Prabhuji! Kindly explain why Lord Chaitanya is not accepted & worshiped as Lord Krishna by other sampradays like sri sampraday & others even though the fact is so clearly revealed in so many scriptures including Mahapuran Srimad Bhagvatam.