Following my initial post, I received the following reply from LastPass that suggested "clearing local cache." I followed the the directions in a link that they provided (see their second paragraph below) but could not find a path to clear local cache. Subsequent conversations were not helpful. Maybe this will work for others.
Thank you for contacting LastPass Support! We are happy to help you.
I apologize for any inconvenience this might have caused. Clearing LastPass' local cache might help. You'll see how to do it by clicking on this link,https://lastpass.com/support.php?cmd=showfaq&id=6796
Please log out and go back in then try again.
Let us know if this works or not so we can investigate further. We appreciate your patience.
Thank you for using LastPass! Have a good one!