Solved
Helpful Tip: Clean up CSS with &'s in Subject Line
Some marketers might find this helpful... I learned this lesson the hard way!
If you use an ampersand in the subject line and then "Clean up CSS" in "HTML Tools" the "&" will be changed to "&"

If you are copying and pasting content into your email you should clean up the CSS to ensure the formatting does not break when your lead receives one of your emails.
If you use an ampersand in the subject line and then "Clean up CSS" in "HTML Tools" the "&" will be changed to "&"


If you are copying and pasting content into your email you should clean up the CSS to ensure the formatting does not break when your lead receives one of your emails.