OK Google commands to open apps is wiping out my "Recently Used Apps" (soft button)!

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AC Question

And Recently Used Apps stays wiped out blank ("No Recently Used Apps"). Until I uninstall "G"...the Google app. Then they reappear! If i "Restart" the tablet (a 2015 samsung galaxy Tab S $450) this also works to restore Recently Used Apps. But then the next time i give a verbal command to OK Google to open/close an app it wipes it clean. Very annoying. Just started mid July 2016. Computer is one year old.