Jumping into this thread to share a similar problem and workaround I found. (I am on Dorico 4.0)
I’ve been running into this exact issue and had gave up trying to use the playing technique popup box (thanks for the workaround on that!). This drove me to use the playing technique menu on the right, and I discovered that sometimes the open hi-hat technique would inexplicably not apply correctly. Visually everything is fine, but the playback would not work on some notes.
I’ve played around in a brand new project (default settings + HALion) trying to figure it out, but the best I can come up with is that ~20% of the time, the open high-hat sound would not playback after the technique is applied. It’s consistent between stopping and restarting playback, so it seems to be tied to the specific note that it’s applied to. It also happens no matter if “Note Before Duration” is on or off.
The only workaround I can think of is to copy and paste individual notes that I know playback correctly (or make a cycle of apply the technique, check that it works, undo, then try again until it does). I’m not sure whats going on here, but I thought I would share.
If you write the drum parts recording live with a MIDI keyboard, I know the issue and unfortunately it hasn’t bee fixed yet
Check this thread out:
“There is currently a limitation in Dorico that if a note has custom playback position data (eg if recorded from MIDI or dragged in Play Mode), then it may not have the playing techniques applied if the position is before the notated position.
Unfortunately that’s the trade-off at the moment, until we’re able to offset the instructions necessary to play the playing techniques correctly by exactly the same amount as the offset you played.”
I typically use my computer keyboard + mouse for drums, but it seems like we’re ending up with the same issue anyway. Should’ve done more research before posting, but thanks for the share! Unfortunately “Reset Playback Overrides” doesn’t do anything for me, and I don’t want to risk breaking something with the midi playback adjustments. I’ll keep an eye out for the future.