Spoilers are for Gale's "condition".

[spoiler]SO Gale already told me about his condition, and the cause of it (the entire story about Mystra), and I've given him an artefact to eat already. However, when I went from medium to high approval with him, back at camp he took me aside and basically repeated the whole story about his condition but that he wouldn't tell me what caused it (after he already did....), and asked for another artefact. No major gameplay problems, but it seems like the trigger for the initial conversation about his condition is bugged, because we definitely shouldn't have had it twice lol.[/spoiler]