Wow! I had exactly the same problems for a looonnng time now.  Shopify automatically changes my tags to lowercase starting with a capital letter.  So I just changed it to that in my code after reading your comment and I am absolutely happy now.  Tha...

I'm testing out the "Dawn" theme in my Shopify store.  When I first set it up, everything worked fine.  Then, suddenly, the "Mega Menu" stopped working.  It shows in the editor as if it's there, but when I load the page up in a separate window, it on...