If not, here are the steps (I am xp, but maybe osx is sim......)
-Open any plug in, instrument, doesn't matter
-click on minimize (xp you have to rightclick boarder top)
-minimize
-then try to maximize from the "reduced" window
Result, full screen capture of plugin and live, with no way to control plugin. Must upper-right click on "x" to remove then reopen plugin from tracklist.
Reproduceable 100%
Confirmations?