[Plugin: RSS Shortcode] Feed issues

Hello!

To Yoast, All:
Thank you for brining RSS Shortcode to the table, it’s a very powerful plug-in and it’s a very easy way to implement rss into a page/post.
I’ve been using it with Category Live Bookmarks Plus to create simple related post content with the tag rss feeds on my artist pages. It was working fine but I just noticed that it was no longer working. I’ve spend about 3 days trying to troubleshoot why it’s not working but I figured maybe someone could shed some light. I know this is kind of a specific problem.
What I found:
RSS Shortcode works with other feeds on the same page just not any of the internal blog feeds I was using. For example, the sample feed from the plug-in and Google calendar fees work but none of the feeds from the web site I’m trying to use it on. Also, I have an almost identical blog with the same theme and everything work on that blog. I’ve tried deactivating other plug-ins that might conflict. Still no luck.
Could this possibly be a bad feed problem within my blog? The feeds work when I enter them into IE/Firefox etc. Also, could it be something with the shortcode?

This is what the short code I was using looked like:
[rss feed=”http://example.com/tag/artist-name/feed/” num=”5” excerpt=”false”]
Also tried
[rss feed=”http://example.com/tag/artist-name/feed/” num=”5” excerpt=”false”/]
And
[rss feed=”http://example.com/feed/” num=”5” excerpt=”false”]

Here’s an example page I was trying to insert the code into:
http://countrymusicchicago.com/the-scene/local-artist-guide/katie-quick

Any ideas? Thanks-