I'm not sure if this issue has been fixed yet (the other thread on the topic has been closed)
I'm still having trouble with the invalid login error. I've tried ticking 'remember me' but it still doesn't work for me. I've got a registered account, and I have the latest client. I'm not sure whats going on?
Due the upgrade and change in how our login algorithm works, you will need to un-click remember me and restart the client to clear the previously saved authentication token, which is now invalid.
If that doesn't solve your issue, download this updated version as of 04/06/2020 and overwrite the one you have currently.
UniverseRevelations.exe