I have also just renamed the folders ~/.config/be.rubdos/ and ~/.local/share/be.rubdos/ and restarted WF. I reassigned the old password, choose primary device and entered my cell phone number and pressed continue. Then a web page from Signal Captcha (I think) was launched. I wanted to enter the checkbox for the question “Are you a human” but then the browser crashed. This procedure I repeated several times after erasing the browser cache. Now I only see the message if I click the “continue” button.
What can I do now?