Today I happened to come across a new bug, as I'd assume. It happened when I was trying out my new skill build. I wanted to see how good the TTK was on my new build in the firing range. Then I saw that killing the enemies in firing range, tracked as SHD kills to Chunk's League Event, which I thought that shouldn't be happening. Later I found out, when I was testing my Kingbreaker PVE Solo Build to check it's DPS. I forgot that I had Polarity Switch activated, and saw that killing the firing range enemies tracked a mission in the event.
I don't know if you guys already knew about this, or if it's even the right place to submit this.