This font is not my heading or paragraph but my miscellaneous one.
The thing is that it shows in some parts on mobile, so it is working just not displaying.
For example, the right custom paragraph 3 font is used in Portfolio titles but not in single portfolio pages or footer.
I tried uploading the font as you suggested, but I keep having the same issue: it applies it in some places, but not on others.
my website:
www.martabocos.com