No CAT control on Slice B with N1MM running WSJT-X

I have the 6600M set for SO2R and am running N1MM. I have CAT control on both slice A and slice B, can change Mode and Frequencies and all tracks fine. When I start up WSJT-X on Slice A, all is fine. I continue to have CAT control. However, when I go to start up WSJT-X on Slice B, I have no CAT control. I then get the error WSJT-X - For EW2, Rig Control Error. Failed to connect to DX Lab Suite Commander, Connection Refused. In Slice A, running WSJT-X Settings Radio, the Rig is DX Lab Suite Commander, CAT Control Network Server is blank, PTT set to CAT, Port is COM4, Mode Data/Pkt, and for split operation, I have "fake it". The Test CAT and Test PTT both pass. It is the same setup for Slice B. I have CAT 4 set for slice A and CAT 6 set for Slice B, yet not sure if I should be seeing CAT 4 as the Port but it is greyed out and can not change.