It’s even worse than I thought. Even after using Advanced Editor to put the HTML tags back into the email body, and then clicking OK, it looks like it’s fixed but when you go away and come back to the activity they’re gone again. How does this pass QA testing?!
So I go to try to use the rich text editor to fix it, and it allows you to select a variable, but not properties of the variable. So I can select the exception variable but I cannot select exception.Message. And there is nothing to set font sizes, colors, or anything beyond bold, italic, underline, and strike-through. What a mess. Sorry UiPath, but somebody didn’t think this through.