Re: [O] Bug: Escaping _ to export to pdf [8.0-pre (release_8.0-pre-335-g4c426b-git @ org-loaddefs.el can not be found!)]

[Nick Dokos]

The underscore (_) triggers subscript behavior. Try

#+OPTIONS: ^:nil

See the org manual, sec. 12.2, "Export options", for more information.
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Nick