Quote Originally Posted by MiRai View Post
Unless you unassigned it, disabled it, or didn't set it up (by default, it's configured for you), then "3" is already attached to a Mapped Key in "Combat Broadcast Hotkeys" that (eventually) sends "3" to all the game clients. So, I'm going to assume you're pressing "3" and both executing a macro, as well as sending "3" to the game clients.
Yup. I thought I had unbound all those keys. But it turns out some were still bound.