Incoming call notification on Windows 10

I'm running Windows 10 (version 1909) and RingCentral Classic (version 20.2.21 E. 7.1.8).  I've noticed Windows Notification for a RC inbound call will only appear on my screen for about 5 seconds and then disappear.  I've tried adjusting the option for Windows Settings for "show notifications" to 1 minute.  Outlook's new email notifications will stay on the screen for 1 minute but inbound calls still disappear after 5 seconds.  One other observation, when I get an incoming call, RingCentral Classic doesn't switch to the foreground (adding to my frustration to answer the call in time).    Any suggestions?