The problem seems to be when loading samples if you make some other program the focus during the load, then after the load is complete and you try to put the focus back on Dorico and attempt playback the beachball happens and the only thing you can do is force quit. If you leave Dorico the focus the entire time that the load occurs then the beach ball does not happen and things work as normal. (One exception is you lose sound if you encounter the beach ball from a previous load. In that case just quit Dorico and create a solo piano from scratch and this will reset the audio system.)
I can make this happen reliably whether using VE Pro, Halion, or Note Performer as the template. In my case using VE Pro this was happening a lot because the samples take longer to load, and the VE Pro Server is a separate app that bounces the dock when it starts to do something, So most of the time I was switching to that app during the load time and so Dorico would beach ball as a result.
To replicate this problem do the following:
- Launch a reasonably large file from the finder.
- Wait until you see Dorico display the hub screen and start loading samples.
- Click another app to move focus away from Dorico (even the Finder is fine for this, or Activity Monitor).
- After Dorico finishes and looks like it is ready, try to select the first bar or note to begin playback.
- At this point you get a beach ball and need to force quit.
If you just let Dorico finish loading without switching focus to another app, it will work (may need sound reset as described above).
I tried to attach a test file but even a much reduced copy is too big. I’ll send a copy to Daniel by email.