Unlocked the Vetteri vitalit m1870/80 carbine but didn't get it.

I wanna say something.. I did destroy a horse with a k bullet and I got the pop up (the carbine weapon) for unlocking the weapon and I was glad because it took so long to unlock this weapon and then I went afk to do something (during conquest at St. Quentins Scar Map) and clicked okay due to inactivity at the menu when I came back to the desk and going to see.. The weapon isnt there in my scout loadout. Is it because I got kicked out due to inactivity? Because I for sure saw the weapon pop up when I killed the horse with a k bullet and the unlock was acknowledged . (Edit: this happened yesterday night and I thought it was a bug which no one seemed to get but until now I saw this forum, PS:Still trying again to unlock it and not go afk haha) So has this happened to anyone? Ps: I saw this similar issue on a forum which was 8 years ago, was told to start a new forum.