Starting a new Session with 4 participants also properly created a chat view, but for one participant this view did not show up. In Julia's Eclipse (using Mac OS X) only the explanatory text was shown (happened around 15:00). The Session itself worked fine, only Julia's chat was missing. During the Session right before, everybody was able to use the chat.
See the logfiles at: http://saros-build.imp.fu-berlin.de/uat/2012_09_27/logs/
What did you intend to say with the new status?
The whole chat stuff was revamped with 13.3.21 so it is not likely that this behavior/bug still exists.