Indeed (aware that he lived there), but I speak fluent Spain Spanish, and to me it sounded off not just accent-wise, but in terms of word choice (which, to be fair, could well be intentional for the purposes of the plot). In any case, I’ll probably rewatch Jauja, as I quite liked it, to form an opinion. He doesn’t exactly speak much Spanish in it, either. So I’m still a bit conflicted.
Also Viggo's partner is Spanish (i thought she was Argentine) aswell. Or maybe they lived in Argentina at one time