I used a previous edition of our newsletter as a template, two columns of equal width. When I removed one of the graphics, the columns became unequal and the width of the whole newsletter was reduced. Nothing I did would get it back to the original 2 columns of equal width. Anybody else experience this problem?
So sorry you had some formatting issues in your newsletter this month. I see that template is one of the older Second-Generation editor templates. If you have been making copies of your previous newsletter template each time over the years, that can possibly cause some issues. I do see you were able to get it back to the equal columns to send out, which is great.
I would suggest recreating that newsletter template in the new Third-Generation editor to start fresh with it. That way it will be in one of the new device-responsive templates, and should be much easier to use and save you some time!