Font Dropping out in Exported PDF
Hello!
In a document that I've exported to a PDF, the font is randomly dropping off throughout the document. The only advice I can find that seems relevant is to adjust the below setting to 0% to embed the font, which I've done. I know that the fonts are embeddable.
What can I do to fix this? I can't figure out what I'm doing wrong. Any help would be SO appreciated.

Here's an example of what it looks like when it's been uploaded online after export (high quality print):

Here's what it should actually look like (this is how is appears in indesign and when I open it on my local drive):

