Exec. File distorts fonts

I'm having trouble when I publish a course to a Single Executable File (which is how my client reviews the course). For reasons I can't understand, the font on some pages (not all) changes or distorts - for example, from regular to bold or from one font to another. I've tried clicking the properties of each text box so it publishes as an image, but no luck. I've even completely retyped some of the text boxes (that were originally pasted into Lectora from a Word document) and sometimes that helps but not always. Has anyone else encountered this? Thanks,dmk

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