I've had the weird lock up during 2 separate, yet consistent issues. When using a Meeting stone to summon other group members, and when attempting to logout and switch toons. Sucks that I actually have to quit the game and restart if I want to switch to a different character. With the summoning, I actually had to CAD, then wait after logging back on to join the group. I'm hoping that it's just something with the files, and they fix it with subsequent hotfixes.
People don't like to be meddled with. We tell them what to do, what to think, don't run, don't walk. We're in their homes and in their heads and we haven't the right. We're meddlesome. ~River Tam Sedao