I'm not sure it's a duplicate of #444962 - Nautilus doesn't render all files as text files (or any non-text files as text files for that matter) and neither removing ~/.local/share/mime, running "update-mime-database.real -V ~/.local/share/mime/", running "sudo update-mime-database /usr/share/mime; sudo update-desktop-database" or running Evince from a terminal (in all cases) fixes the problem.
I'm not sure it's a duplicate of #444962 - Nautilus doesn't render all files as text files (or any non-text files as text files for that matter) and neither removing ~/.local/ share/mime, running "update- mime-database. real -V ~/.local/ share/mime/ ", running "sudo update- mime-database /usr/share/mime; sudo update- desktop- database" or running Evince from a terminal (in all cases) fixes the problem.