I have three characters set up. The first can be selected, played, change servers, and generally works as it should. The second can be selected and played, but if I try to change servers it affects the first character - that is, when the 75-second server change is complete I find I am playing the first character, not the second. The third character has the same problem as the first, with the addition that they can't be played (and have never been played). Clicking Play always brings up the server change dialog, followed by a 75 second wait, and when the 75 seconds is complete I'm playing the first character.
I am aware of the one-character per server limit and am not trying to put all these characters on the same server. The above problems seem to apply regardless of what server I select.