In Post Ads are formatted wrong

I'm new here... I submitted a regular ticket but haven't heard back, so I thought I'd post to the forum... sorry if it comes across as a double post.

First, FYI, I applied a fix to resolve another formatting issue... found here:

I'm not sure if it's related or not, but now the submit button doesn't click through to the right page and there's a stray character at the top of the ad. You can see what I mean here:

And, here's a screenshot that best explains what I mean: