When I do a group snapshot, I hear the shutter sound effect even if the option to “Play shutter sound when shapshots are taken” is un-checked.
To reproduce, load the tutorial project.
Turn off “Play shutter sound when snapshots are taken”
Select all the sub-documents of “The Inspector”
Take a snapshot.
The sound effect occurs when I use the keyboard shortcut (CMD 5) or the “take titled snapshot” toolbar button, so i don’t think the method of invoking the feature seems to matter.
I tried toggling it on and off again, and I’ve experienced this with multiple projects, all created before the most recent update (including the tutorial).