So I'm trying to link the MonsterIRC with Herochat 5.1, the bot can join the channel fine and can relay IRC --> Minecraft. Just not the other way around. My config channel has default, HeroChatEnabled, and AutoJoin all set to true with my HerochatChannel being set up as IRC. The IRC channel uses a nondefault format "'{color}[{nick}] &f{sender}{color}: {msg}'" Ingame when you try to talk in this channel. It only places a blank like and no relayed message from Minecraft --> IRC. The blank line it places does have what the Herochat format would resolve to in-game.

Here's a copy of my WG report: http://pastebin.com/MfMh9Ch6

This should be fixed in the newest version once it's approved (1.22)