
Update - October 25: Following additional reports, Bungie has confirmed what many Destiny 2 players suspected. The studio says an issue "in our code" has made "some random perk combinations harder to earn per legendary weapon perk set. In some cases, desirable perk combinations are a bit easier to earn as well. While we inspected our content and confirmed each perk is weighted equally, an issue in perk pool RNG is the culprit here."
Bungie has "identified a potential solution to the issue, and we are rapidly working to validate the fix." It's hoping to push this hotfix as soon as possible, but is still working out timing.