Apparently I shouldn't be doing quests today, but Austil seems broken, not sure if only for me. I started the quest from Alexis in Agletak Cavern and then tried to do the banana slug quest.(Which I managed to finish.) But now the quest for the potion from Alexis won't continue. I even went back and restarted it.
You say, "Alexis."
Austil, the Potionmaker says, "Ah, Alexis. Such a delicate soul."
 (say) Yes, she sent me to get a potion.
 (say) I forgot what I was going to say.
You say, "Yes, she sent me to get a potion." <-No response to this.
You say, "I forgot what I was going to say."
Austil, the Potionmaker says, "Um, okay. Maybe later then."
I'll attempt to stop breaking things now. Sorry!