Popup Pro Preview -- different depending upon where you trigger the preview

Has anyone else noticed when using Popup Pro, that if the popup is "previewed" from the page where you edit a popup, it doesn't show, say, font colors. But if you go to the dashboard page which shows all existing popups, and choose a popup to preview from that page list, it does display font colors & sizes properly.

The popup content formatting also displays properly with a regular (non-preview) trigger.

It was very disconcerting thinking none of my formatting would display, until I stumbled upon checking the preview using the page listing all the popups.

Anyone know why the two previews are so different?

I'm using TinyMCE Advanced, not vanilla TinyMCE, as my editor. No difference when I disabled the add-on color-picker.