No text appears after Registered Trademark symbol in title

I'm using RoboHelp 11 in Win 7 to generate HTML5 output.

I'm using Standard Layout 1, and I've put in our product name with a registered trademark system. I'd like the whole title to read

Our Product Name^® Online Help

I edited the layout to change color and font and add our logo,and I set the title up like this:

I've got the ® and it's even superscripted correctly, but then the words "Online Help" don't appear. It looks like this:

Can anyone tell me why the remaining words don't appear?

Bonus points for anyone who can tell me how to center our logo horizontally . . . . .

Thank you.