FAQ Categories not created automatically

Hi WPMUdev, I'm having problems with my install regarding the FAQ categories not being created upon plugin activation. I cannot create any FAQ categories manually either.

Similar to this problem: https://premium.wpmudev.org/forums/topic/support-categories-not-creating (did not want to make a "me too" in the thread).

Site is hosted with wpengine and I have done no customisation of the database.

Hope you can help me out, thank you in advance.