Hello,
I also had this problem yesterday.
I logged out of the server after a long play (for a short AFK). I came back after a few minutes, (re)joined the server and the Please Wait screen did not disappeared. Pressing ESC key makes show that the environment is correctly loaded.
I also faced the "You're unconscious", "You're Dead" bug several times during the last weekend (15-16 Feb.) after being killed.
Switching to another server or closing the game generally solves the issue.
In my opinion this is clearly a concurrency issue in the code.