Wrong chords in Music XML

I’m exporting an track with chords to Dorico through Music XML. The track is A flat. The first chord is notated as D flat in the score Editor (see image). The exported Music XML turns this into C sharp.

C 1 major ![Schermafbeelding 2017-09-29 om 12.16.38.jpg|720x614](upload://vKrlMBmJdQEqxJglYzKI7eBryEJ.jpeg) [TEst.zip|attachment](upload://1p2pqoiQwCFvZO33epwilXmfXj7.zip) (254 KB)