Sometimes, it seems Henry learned something telepatically or off-camera, the player never knew. And then Henry spouts his knowledge around later in some conversation etc.
Also, i.e. when ivestigating the Accidents at the Monestary, you walk into some area, the queest ends, suddenly, all by itself, with nothing even mentioning it anymore showing up in the questlog (whereas it was formerly mentioned) and when talking to some other dude, Henry talks of things that must have happened when the cameras weren’t rolling.
I love this game and it’s quests, but there is certainly a bunch of oddities here and there…