78 - 2.3.6a -> disconnected from server when logging in with char in Dalaran

After upgrading to 2.3.6a I was unable to login my main who was standing in Dalaran. When the loading bar reached the end, I got disconnected from the server. (tried several times). Other characters worked fine. After logging in without Cartographer and flying to a different place, logging in with my main works again with Cartographer enabled. Have not tried flying back to Dalaran Yet. :)