Insert head shake here. So I took the advice from opnspaces and sat back in order to take it all in. Traced the lines rechecked everything and as you can imagine nothing. Frustrated and beginning to accept defeat a thought occurred to me. I thought zero chance but I did it anyway. I took off the head on the sink and ran the hot water. It spit and sputter and then piping hot water. Inspected everything and still no idea as to the what or the why. Put it all back together and boom it’s working. Could I have missed something? Maybe? possibly? I don’t know for sure but it’s working. This one has me shaking my head.