I am unable to sign in from my Mac. When I launch the app (version 4.74.0 (1172)) it prompts me for email and password. I enter that, and it rejects the password the first time even though I know I entered it correctly. I enter it a second time, and it shows me the animation with. the dial spinning on the safe. This goes on indefinitely, and it never does anything else. I get the same thing in the Safari extension.
I quit LP, deleted it, rebooted, reinstalled the app and tried again with the exact same result. It works on another Mac, which is really weird.
This Mac is running Catalina (10.15.7 (19H1217))