Problems with New Outlook for Mac Search

Since switching to New Outlook for Mac I am only getting partial or no results for emails or calendar events I can go and find manually in the application - so they exist but Search is not finding them. I found the following online help article  https://macresearch.org/outlook-search-not-working-on-mac/ and went through all the steps but it has not corrected the issue. I would appreciate any help. Thanks