Shapenotes make dots disappear, though duration remains correct as if the note was dotted

Apologies if this has already been reported.
Just downloaded 4.4.2
When I change the noteheads to 7-shape (aikin), the dots that lengthen the duration of a note, disappear.
In attached score, you can see the half note is dotted, but the dot doesn't show.
If I change back to normal noteheads, the dot remains gone. I write new dotted notes, but the dot no longer appears on screen. The duration is correct though. It's a pure visual issue: the note looks like a normal length note instead of a dotted note.
I change noteheads via "stave/part properties > advanced style properties".

I checked all releases back to 4.3.2 and this version does not have this problem. All 4.4 versions do have this problem.

Thanks for looking into this.