empty midi file

I needed to export a midi file from this Dorico file, but the resulting midi file has no notes (see enclosed). ???

(I finally had to export as XML to Sibelius and make a midi file from Sibelius.)
MidiFileBug.7z (508 KB)

give it a playback template (other than silenceā€¦) ?? (at least then it worked for me)

Hmm, I tried that and it worked. Thank you!