There is an anomaly in the display of the" Simplex", "-", & "+" buttons in FM or NFM mode.
If "Simplex" is already highlighted & you click on "Simplex" again, the highlighting goes out, but the radio is still in simplex. Same is true of the "-" & "+" buttons. Net result is that none of the buttons are highlighted & you have no visual way of knowing whether offset is turned on or not,
73, Ray, K9DUR