I enabled SonarLint for the original project, and I do still see the unfinished analysis problem. At the moment it’s not clear to me what the critical difference is. So it looks like I have two issues: in the original project the analysis does not finish; in the new project, the analysis does finish but does not display any of the expected results.
I might put this investigation aside for a while: until I have an epiphany on something to try, or I have time to dig in. Thanks for your time looking into this.