The zoning chat bug is back.
What do you mean it's "back"?
That bug has never gone away as far as I know.
Winner of Players' Choice Best Villainous Arc 2010: Fear and Loathing on Striga; ID #350522
Yeah, it's always been like that. I dual box a lot so I notice it.
Paragon City Search And Rescue
The Mentor Project
It actually went away for a little while around... I8, I think. I was on Dial-Up, so I'd miss a LOT of stuff while zoning/loading. Then, I noticed that all the stuff was there, and I had a happy! The very next patch re-broke it.

[ ProTip: The banner is a link to art refs!! | The Khellection | The HBAS Repository | Brute Guides (4/16/10) | How To Post An Image - A Quick Guide ]
Biggest Troll on the forums? I'll give you a hint:

I just noticed this today, but I'm not sure how long it has been going on.
When zoning my character in/out of maps I don't pick up chat from my global channels.
I confirmed it by having 2 characters logged in simultaneously. Character that isn't zoning picks up messages that the character that was zoning didn't pick up.
I can provide screenshots, but it would be rather annoying to upload and point out all the discrepencies, so I'll only do so if it's really necessary.
This was really annoying the first time it was in the game (which was i12 iirc), and it took them forever to fix it, hopefully a fix will come quicker this time.