Loadout Resets by itself (Bug)

So the story is, I’ve received a Dutchs knife and the Golden skin for it from the loot boxes (I know, i was extremely lucky); I equipped it, then started a match, and when I was finished, I’ve returned to look at my loadout, and what have I seen? It was reset to default, weapons, perks, but not the cosmetics.
I actually believe that’s happening because I’m lower than LVL 150, which is the level when you receive that knife. Could you please fix it, developers?

Its not true
Try to delete save data

I’m saying no for them

They will not listen

As an option