Missing Milestone Reward

I hit 700,000 XP in Zombie Massacre and unlocked the RC Helicopter, except it’s nowhere in my inventory. I’ve checked my Collection Book and it says the RC Heli is unlocked, so I’m worried that I’m never going to have it since it can only be unlocked once.

I don’t know exactly the problem, but I think it might have to do with the fact that I have been playing on two different devices (my laptop and desktop) and the Steam migration thing. All of my other rewards, XP, etc. seem fine except for this one item.

you did use to search bar to search for it in your inventory right?

Hello, this is indeed a bug. We have put out a backend change that resolves this. You just need to get EXP one more time and the milestone items will be granted automatically.