Text changes to thin version of the font on the Rise page, no way to fix?

I'm reposting this since my reply to another thread may not have been noticed.

Some text auto-formats as a thin version of the font in Rise 360 when it goes to the page (in the Edit section it appears correctly). It's odd because we have two versions of the course, one English and one French and it's only occurring in the French version.

Within the Edit section it looks fine and is not thin, but on the page it's changed to thin no matter what I do. A patch solution such as bolding all the text is not feasible.

Specific places that do this:

Knowledge Check - feedback.
Button stack - description.
Accordion - text inside once opened.

Please advise how to fix this so the text uses the normal font on the page (the same as in the Edit section), and does not automatically change to a thin version.

Any help is appreciated.