I've enjoyed what I could play of the game, and maybe it's because I haven't read any of the dev logs, but I think I've found a glitch - I spoke to fern about the difference between healing magic and potions and she just started going on about things that hadn't happened... I accepted the extra potions because who wouldn't but it did massively confuse me (until I found the adult slimes AFTER Arthur told me what I had seen was an adult slime lmao).
Since then, I've had the additional dialogue with Arthur, collected the samples he wanted, and have been waiting ever since to speak to him about them, but he keeps saying to come back later. The questlog just says to return to him, but again, its all "come back later." I think it's been roughly 14 days in-game.