ToolTips, Other Functionality, Disappears After Sleep

I am new to Win 10, just purchased a Surface Pro 4 about two weeks ago. Not loving it.

Several things that is driving me nuts:

• The ToolTips that appear when I hover my mouse over the system tray disappear
• The Surface Pen loses functionality:
  
  • Clicking the eraser doesn't launch OneNote
  • Double-clicking the eraser doesn't take a screenshot
  • Long-pressing the tip to the screen does not launch the context menu

Note this problem appears sporadically. Service is always restored by a reboot; I don't know if coming out of sleep is the first time it happens, but that is the first time I notice it.

I have seen another post about a batch file to reset notifications. That's not the issue; the issue is the ToolTips stop appearing.

Thanks for any advice.

Correction - it does not appear after coming out of Sleep mode, but rather after coming back from having the Display off.

I have the Power options set for 10 minutes before screen shuts off; I was away for over an hour, so I don't know if they are connected or coincidence.