Instrument change bug still unsolved?

Though I have reported this bug at least half a year ago it’s still there: when a percussion player changes the instrument and there is just a short rest inbetween, Dorico omits a quarter rest resulting in an incomplete bar. How can I change/ repair this odd behaviour?
Here a screenshot. It’s a 4/4 bar and when the instrument changes a quarter note rest is missing. grafik

Please see e.g. this earlier thread.