Creds send on PM.
Steps to replicate.
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change language to german
click on login
see that you see broken images after login (it takes you to your profile page)
Now you can logout
change the language to English and try the same steps and it works.
One of my co-worker also reported one more issue i.e. if you logout and change language and try to login with correct creds then it redirects you to the same login page, this cannot be replicated everytime.
Seems to me that something is wrong with ssl and translated pages or something else.