The forum just showed me a thread that I could read (though I’m sadly not in the beta), yet not answer, in which NDA relevant information was present. Now I get a proper permission error. Could be a bug in the forum software that it publicises the latesest threads even from hidden subforums.
Link in question is:
https://forums.ageofempires.com/discussion/1483/units-seem-to-be-very-dumb-in-movement#latest