'Invalid forum specified' when subscribing to an article
Two things - one minor, one not.
I went from the 'edit' tab to 'unwatch' and the tab didn't load (stuck on the 'loading - please wait' message). It did unsubscribe me, though.
I reload the page, click 'watch' tab, subscribe, and get an 'Invalid Forum specified' message. So I can't subscribe to an article from this tab, only when posting.