It was completely black. No UI or crosshair. But when I pressed Esc dialog window "Do you want to quit character creation" appeared. When I pressed Yes it went black again. Then I pressed Esc again appeared dialog window "Do you want to quit the game".
I've bought a sub couple of days ago. The game went black screen after character creation. After that I'm getting Login Timeout all the time. Support told me to reinstall, clear cache and registry etc. Didn't help. They said they have teleported my character. I have no idea how it is connected to the issue but it didn't help too.