"I didn't say that!"

I'm guessing the same thing can remove whole lines as well? I'm noticing in the 2nd SS that your 2nd line "You can CC blah blah" wasn't there.
I've yet to see this happen to anyone I know or to myself, so this is rather daunting.

Actually that line did go through. My party mate saw it after the other guy's "to last word", just didn't get it in the screenshot. That makes sense, since you see your own speech before it gets sent to the server, but everybody else sees it after it's gone to the server and out to them.

The changed text hasn't happened to me since, or at least not that I know of. Hoping they fixed it.