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Tony, i would have to connect to your computer to see what is happening......and verify the issue, and diagnose, then run a fix.
But, theres just too many variables with google calendars.
What web browser are you using?
If you are using Micorsoft Edge (its the default in Windows 10) then i suggest you try using google calendars in a different browser. As Google calendars uses a web browser to run.
So try using Firefox, or Google Chrome and try again.