Just an aside – I have done a lot of work in the past week or so to make sure that code displays correctly in this site. But it’s not perfect, as the posts above illustrate.
If you want to put some code in a post, be sure to set it off from the rest of the body of the message with two returns, just as if you were starting a new paragraph.
Here’s an example. The line following this will not be rendered as code. But the one following that will. #this is not a comment
#this is a comment
As to the problem you’re having with the Action, I have noticed run-ins between this Action and several others. On one site where I could not remove the conflicting Actions, I simply hand-coded the link to the favicon using the Page > HTML Markup dialog. In my case I believe it was the External JavaScript action. I was getting favicon references to the javascript, and that made for an entertaining page.