Closing a FileMaker window while FM is not active leads to a state where no window can be active
FileMaker Pro Advanced 13.0v4
Operating system version
OS X 10.10.1
Description of the issue
When a non-FileMaker app is active, closing a FileMaker window (in the background) makes FileMaker the active app, but no FileMaker windows are active, and clicking the other FileMaker windows doesn't make them active.
Because windows won't become active, you can't click layout buttons, enter text, or do other actions in active window. The toolbar buttons, including the record navigator, continue to work. Double-clicking in the layout area still works for some reason.
When this happens, selecting a different app and returning to FileMaker restores normal operation.
Steps to reproduce the problem
1. Open a FileMaker database.
2. Open a few new windows.
3. Switch to a non-FileMaker app (e.g. Finder).
4. Close a FileMaker window by clicking the red circle on its title bar.
5. Try to enter text or click a layout button in the frontmost FileMaker window. FileMaker does not respond normally.
Issue confirmed with an empty test database with no plugins installed.
Switch to a different app, then switch back to FileMaker.