Hello,
I am running into the same issue, however the <superscript></superscript> tags don't seem to be working for me. It's obvious the code is working:
return Field("Disclaimer").replace(/SM/g,<superscript>SM</superscript>);
because I can replace the SM with anything else, and it does change it, however, does not make is superscript.
I've tried changing fonts to see if that made a difference, but it has not. I am running 9.1.0 on Windows.
Any help would be greatly appreciated!