So, this is a bit awkward for me to explain. Imagine this scenario: You've just leveled up. With your level up, you unlock a new weapon. The animation works flawlessly (and quite beautifully, I might add) in displaying your new weapon. Say, however, in the match you used the one-bounce a lot and you know it will be leveled up as well (to the three-bounce). During the unlock animation for your new level up weapon, you see that the three-bounce icon is already unlocked. Once it transitions to showing you weapon XP progress, the three-bounce unlock animation occurs. A visual bug more than anything, but a bug nonetheless.