Starting from scratch, empty settings/temporary/library/logs folders with docker beta 3.
Welcome screen, login (I already have a plan), code via email : works OK.
At the thank you screen the button Return to your library does not work, I get an error message on the top right of the page that says: “Missing/too few uids”
Clicking the Manage billing button works as expected.
Note: I disabled ad blocking and cookie manager without any effect.