Can't say I have, but if there is an issue, I am afraid that it lies with the web interface, not the chat itself. But even when I try to use the web interface it works fine for me.
You could always try the oldschool-version and access the channel with an IRC-client. I personally recommend
UPP, because it's the most comfortable client to use. Instructions on how to get to the channel can be found
here. Just substitute MIRC with UPP and you're good to go.