Ctrl+Click to select multiple items in grid view stops working in Classic Outlook

I stay on Classic Outlook for Desktop because I DETEST the new Outlook (and 365 altogether for that matter).  Now I suddenly lost the ability to Ctrl+Click to select multiple items from the grid view (to delete multiple emails).  More bizarrely it will spontaneously come back sometimes and then go away again.  Any ideas?  After 36 years of using MS Office and being its biggest fan, I am hoping a competitor other than Google bubbles  to the surface to maintain my sanity. 

Hey Microsoft:  I want my deep customization, robust feature set, and stability around forever.  I don't care one bit about Teams, OneDrive, SharePoint, Co-Pilot, or a simplistic interface filled with whitespace.