Topic where this occurs: https://forum.godotengine.org/t/how-to-tween-a-dictionary-value
This is likely a Discourse bug we can’t resolve on our end. If you click on the “expand” arrow in the top-right corner of the infobox, it’ll display correctly:
My guess is that Discourse relies on displaying the plain text in the compact infobox, but it should display the parsed text with CSS overflow instead.