I was working today on Publisher and created a custom text frame for my text. When the frame is deselected I can see a very thin white-ish line where it was. It remained there when I exported it as a pdf. I tried creating a test custom frame on another page and it did the same thing. Please see the screen shot. The text frame does NOT show on regular, rectangular text boxes; that is working fine. Am I missing something? Or is this a bug. I've been looking for the text frame border options and I either made the stroke transparent or the same color as the background, but it turns out I was working with the text itself.
Macbook Pro Late 2013 13" OS 10.14,