I hope it's ok to paste an entire .ly file (it's no symphonic score ;-))
What happened here in print view is that, starting from measure 8, all chords are shifted too far to the left. The Bbmaj shows up in bar 8, but was placed in bar 9.
>From measure 21 the opposite happens; all chords are aligned too far to the right.
Apart from that, there's also bar 7 that shows "Bbmaj/add8" which I put in as regular bes:maj", and in bar 30 you can see "G7/sus4/add3" which is put in as regular ""g:7".
What's with the strange outcome?
%% LilyPond file generated by Denemo version 0.8.22