Why are words hy­phen­at­ed in­cor­rect­ly or not at all?

This plu­g­in in­cludes hy­phen­ation pat­terns for over 50 lan­guages. Please make sure your website’s pri­ma­ry lan­guage is se­lect­ed. wp-​Typography pref­er­ences can be set in the Word­Press ad­min sec­tion un­der Settings > wp-Typography.