Yes, tried all that.

Now, I think what may be happening is:

I search for Quickbooks Community and enter the site.

I am signed in (by my Password Manager)

However, I have to sign in again to QuickBooks Community

The Icon then appears .........

I have been assuming as it shows me as signed in to Quickbooks, this is all I need, but I have to sign in again (same Password) to the Community.