I have two does, one freshened on 1/29/21 (Second freshening, milked last year during first freshening), and one freshened 1/31/21 (Third Freshening, first time milking). The second freshener had great tasting milk last year during he first freshening. I recently starting using a simple pulse milking machine to milk both does. For some reason now the milk is tasting "musty", and has a strange aftertaste. Both does' milk is milked into the same jar, filtered, and chilled asap (within 30 minutes). They each had a buck kid, and are penned next to the does, but they are only 2 months old. Any suggestions as to what could be causing this strange flavor? Thanks in advance!!!