Rich, are you filling the system via the remote reservoir? It could be that it isn't refilling the MC as fast as you are bleeding it out. Remove it while you're bleeding and fill the MC directly with a squeeze bottle with a straw and a mirror from underneath and see if that works.
https://www.amazon.com/Economy-Bott...eze+Bottle&qid=1698167294&sr=8-9Mike B
