Finally got it on video(purples from heroic CP big chest)
Sorry, I wasn't recording the entire CP run. I was just farming while watching netflix. But as soon as I opened the chest and saw purples, I hit record.
Hopefully it makes sense. You can see my agent sitting there with the open chest. It's the big yellow one that everyone should recognize. You'll see the open world difficulty in the top left corner as soon as I hit escape in the video. This was today. WONY. Heroic open world with 1 directive(special ammo).
The loot is definitely normal/hard level stuff and not heroic. Definitely a bug and not working as intended.
https://www.youtube.com/watch?v=ywxBsU93NwE
Edit: Just an FYI. Despite the title, this is the first and only time I've ever seen this happen in thousands of hours of gameplay across several accounts.