Happened to me once too.
[You must be logged in to view images. Log in or Register.]
On other zones too, often from Inno to Grobb and Guk, seen it at some others as well, less often. Sometimes I just normally run at it and go through it, few times replicated it by shrinking EQ window while running and when popping it back up I was on the other side of the zl.
I like how my guildchat consists of nothing but me talking. Monologue!