Last bar (C minor) Dorico detects as Eb6; better C-7/Eb as in first bar Cmaj7 and Cmaj7/E … ; is there something in the Dorico settings? Or am I wrong somewhere?
I don’t think there’s any setting you can change here. You can change the way the chord is spelled when entering it with a MIDI keyboard (replaying the Eb after having played Cm7 with a C bass) but not when it’s done automatically through the notation, as far as I know.