I’ve largely stopped using EZKeys. Besides this behavior, the UI for creating / editing chords is a PITA and takes too long for what I do, and the chords aren’t available for lead sheets or sharing.
iReal Pro and Band in a Box both give fast keyboard chord entry and song structure, and iReal Pro has printable/iPad-able lead sheets. Neither provide the quality of a good EZKeys track, though the occasional RealTrack in BiaB is surprisingly good.
Update: I went back and checked because that seemed too easy. EZDrummer and EZKeys actually behave in similar inconsistent ways: sometimes your work is restored, sometimes it isn’t, sometimes it’s partially restored. It seems related to how much time elapses between your last edit in the plugin and when you hit the Delete key. If you wait 10-20 seconds before hitting Delete, then Undo, you’ll often get some of your changes back. In one case, pressing Delete caused the screen to flash with no other result.
