Altered the default path for the website before creating the first website and Flywheel simply will not connect

Thinking I would be better served by keeping the data on my D drive, I altered the path for the website before creating the first website.

Problem is that even when I change it back to User/Flywheel/sites/ (a path gleaned from other support threads here), Local cannot connect.

I tried uninstalling and reinstalling, but obviously the preferences are not removed with uninstall.

Can anybody offer advice, please?