Congratulations on this progress!
I am still experiencing the bug.
When you say ‘first playback’, do you mean only the very first time a score is Played in Write mode?
And that it is the very act/process of adding bars at the end which is confusing Dorico, which is (perhaps: this is what I gather from your post) causing it to lose or otherwise incorrectly set (pointers to) the correct position for the playhead (from that moment on)?
In general terms, this would seem to be what I for one (others may have different experiences?) have noticed.
Though with the exception of the fact that my workflow is always:
- add bars in Write mode (at the end) or edit bars (anywhere)
- play back in Write mode… sometimes from the start, although usually not
- continue with 1
Is this consistent with what you have found?
It may be that the bug surfaces only after one playback (does that have to be the complete score composed so far in your investigations?).
And I’d have said that I lose the Playhead more frequently the longer a session progresses.
But I’m sure that it - although it probably does happen after first playback - I rarely get the bug every time I play back; regardless of where I edit or add.
Please keep your discoveries coming: I’d love to help you track it down. And thanks again!