So you upgraded from osTicket 1.6ST to 1.7x and FAQs aren't working?
So a while ago I cloned and updated my osticket 1.6ST (modified) and performed the update to 1.7RC2, and then updated to 1.7RC4, 1.7RC5, and finally 1.7RC6. I was never able to get FAQs to work at all. More specifically adding and editing them.
I logged in with my admin account and enabled them at:
Admin panel -> Knowledgebase
Yet still Categories and Add New Faq never showed up.