The only thing I have found is the register or login message after the first message shows html. I can't find the phrase or template that I should edit. Is it hard coded?
The phrase is: wutime_forcereg_blur_please_register_x_or_y_message
You're also using the old "Choose your implementation = Guests Mode (legacy mode)" system implementation as this issue doesn't occur with the recommended "Users" mode.
You should update. I've been asking customers to migrate to the Users system for almost two years. I stopped supported that legacy mode a while ago and don't build nor test new features with it. I left it accessible only to ensure customers had time to update.
I have "fixed" the phrase for the next release to remove the HTML from the phrase.

