Multiplus II installation issues

Installed Multiplus in a 50 amp RV. Have the cerbo and the touchpanel 50. Anyhow my meter shows that electricity is going into the inverter and coming out I only show one leg on the panel?

Not sure if this is because I am using two 110 cords going in to the 50 amp cord or something else?

Is this a mp2 2x120? If both legs are in phase then the mp2 sees it as single phase 120 and ignores L2 input and connects L1 and L2 outputs together.

So I know enough about electricity to just get me in trouble. Does that mean I’m still getting the 50 A or my only really getting the 120 single??