I have three social media icons configured in a horizontal row. Everything is fine until I try to reopen the template. When I do the social media preferences window automatically opens and when I close it the last icon has dropped down to a second line. Is this a bug?
I believe you have found a bug! I have been playing with a TEST that is a copy of your Test Email Template 3. The only workaround seems to be to have them flush left. I will have someone take a look at the TEST mailing. Please do not delete it.
I am not sure if it is due to the special character ("+") in the URL for Google+ or if it is just that set of icons. I will let you know what I find out!