How to re-trigger main branch analysis after upgrading for more lines of code

You are correct. All new PRs on Github are being analyzed by SonarCloud as expected, but even after merging to master, the ‘Main Branch’ screen continues to show the errors shown below (note that this modal error message appears after I click the The last analysis has failed.See details link in the upper right of the ‘Main Branch’ tab):

I do not see a ‘Force automatic analysis’ button.