I’ve not had this occur so far.
When this does occur:
- Is the app still responsive? Still type in it, create new Drafts, etc.
- Are there any other menu items greyed out that you would not expect to be.
- How many windows are open? As @martinpacker noted, the most common cause is a dialog in the background.
- What does Activity Monitor show for Drafts when this occurs? Make sure to include the preventing sleep option and sudden termination too for good measure along with the CPU stats.
