It seems that there are some style definitions that conflicts with the jQuery UI Dialog widget ImageMapper is using. It might be that some plugin or theme is causing this. Can you try to disable other plugins and check if it helps?
Thanks for getting back to me. I disabled all plugins. Both one at a time and all at once. No joy. The template that is being used is Widescreen by Graph Paper Press. When I activated one of the default templates the issue went away. Any idea how to work around this?
I investigated it a bit, but couldn’t figure out where’s the problem. There’s one element that causes all that and no matter what I try it never starts to work. And I cannot find any logic behind its behavior, it’s like a browser’s rendering bug.
However this issue can be fixed with completely hiding the element. If you can access the stylesheet of your style, please add this there: