In German “it doesn’t matter” means “es ist egal” (literally something like “it is equal” but “egal” is only used in this sense). When I played a board game with a Spanish native speaker, I asked “how many points do you have?” And he said “es ist egal”, intending to say “we are equal” but I was like “it sure does matter” and he thought I didn’t believe him that he reached me.