In short, yes. When Forsaken first came out, all ammo finders, but specifically HAF, were highly inconsistent. To counter this, people began putting multiple finders on armor, which broke their effect. Multiples of the same or different type of finder broke them all. Recently, Bungie put forth a patch that fixed most finder inconsistency issues, but stacking finders, in my experience and as it has not been addressed in a patch, still breaks the perk. I’d say run one finder on your armor for now until it fixes