Yes. Mine does as well. SB and port lines run into a tee, with a shutoff valve for each side. I swapped the supply lines so that the port feed came into the SB side of the tee through and associated shutoff valve, thinking that maybe the port side valve under the sink failed but no luck. I see the pump is pulling water within a couple inches of the shutoff valve, but doesn't budge beyond that.
I am replacing all water lines, valves and probably the pump since it is the original one with a belt. Figure I replace it before it fails while everything is pulled apart.
Thanks for the input