When you select the default characters skin and try to change the accessories on him you cannot select between the multiple version ones.
In this screenshot https://gyazo.com/0dfb05719f0c8be1a9636d1804e00f9b you can see that I have 1 unlock for the Eternity Marking, however I don't have the very first one unlocked so I can't select the marking I have. If I close the store it does not put any type of marking on my head
I found a workaround until this bug is fixed.
How did you unlock the Eternity Marking upgrade that you do have? Did you open it in a lockbox, or buy it with gems?