My usual setup (and I imagine a lot of people's too) is having the Local window by itself, so it can be kept open all the time, and all other chat windows stacked together in a single window for easier minimize/maximize.
After Trinity I just can't seem to get them to stay that way - every now and then after I log in I notice that the local window is stacked together with the rest. But not all the time - sometimes it stays unstacked for days, other times it stacks every time I log in.
It's really annoying as I have to drag it out of the rest every time and resize it again.
Is this a known bug and is there any word on whether it's being worked on?