I have a problem with signing in to Opera in order to sync my data. I click "Sign in", fill in my email and password and press enter. First it seems to be fine, but then it says "You're currently signed in as: undefined" in the settings. Then it changes to "An error occurred while attempting to sign in". I don't know how to fix it, please help!
I have seen some people commenting on it.
Same here. Works fine to sign in to Opera 45.0.2552.812.
Used to work in Opera Developer (until yesterday).
Same problem. Opera Developer (46.0.2590.0)
Please see this topic