Is ace in the hole glitched?

So, a friend of mine has been recently started making a gremlin hoarding build so he can save blood points and save items.

From what has telling me is that last match he hasn't lost any add-ons at all, which is true, thats how the perk works.

But, recently two matches we had, he lost a singular add-on, while keeping the other one.

So, my theory is that it's just a translation issue, the percentiles don't only affect the rarity of the add-ons you get, but also effect if you keep them or not. Is this true or is Ace in the hole bugged?

Comments