I not sure but maybe i can speack about a spoiler for that watch out if you'll read it.
Hi, i've just a little problem. I have completed the quest of glow frogs catch, but after i catched 4 frogs and watch the dialogue scene the game not go ahead. If i return at the HQ of guild the guild leader tell me about the quest as if i not completed it. It is a game bug or i'm just a noob?