I noticed that I was leveling up really quickly, like two levels per game. Turns out my rank got reset to zero so now I’m a rookie. My season progress stayed the same, so I’m the only rookie with an odst helm and an armor effect. It hasn’t really affected my progress and I’ll eventually level to where I should be, but it’s a weird bug and it should be fixed.
Look at your emblem. If it has two swords behind it, your rank hasn’t reset. It’s like Call of Duty’s prestige mode.