Hey @CvS - happy to help dig in here! Thanks for checking the cache, I was also curious if that was an issue.
Is this on all of your sites, or just a single site? If you create a brand new site in Local, can you log in to WP Admin successfully?
My educated guess - the wp-config.php for this site still has the salts in the wrong location (our fault for that bug!) and that is why the login is being redirected.
Can you check the wp-config.php to see where your salts appear? You can quickly get to the file by clicking “Go to site folder” and navigating to app/public/wp-config.php. I’ve attached an image of my wp-config.php file; if your salts are located at the bottom of the file, can you try moving them up to where you see mine located (red box), saving the file, and then attempting to log in again? If this is the same issue, the bug was resolved in Local v7.0.2, but sites made on a version where the bug was present might need some help getting over the hump.
The problem was on two sites.
But moving up the salts fixed the problem. Thanks.
This saves me a lot of work.
Indeed, I had already done a test with new site creation and http change.
That went without any problems.
But many thanks for this golden advice!