As the topic title states, [url=https://www.youtube.com/watch?v=QrkjVh4Yz90]the perk 'Osmosis' isn't activating on certain weapons[/url] (particularly older weapons)-- atleast on my Servant Leader. The exact diagnosis on if it's the weapon itself or the whole Scout Rifle class of weapon. In the video above, you will be able to see (on the bottom left), that Firefright changes the weapon type, as expected, but Servant Leader will not. Things I have tested: Traveler's Chosen Osmosis: Works as expected. Chain of Command's Osmosis: Works as expected. Firefright w/Crafted Enhanced Osmosis: Works as expected. Servant Leader (From around 4 Seasons Ago): Does not Proc on ANY Subclass. EDIT: [b]Thanks to [u]Xaren[/u], the issue has been narrowed down to the actual problem; even after resetting my artifact, the effect still applied until my weapon was swapped out, then re-equipped.[/b] I notice when looking through Light.gg, that [url=https://i.ibb.co/z5VS8J5/Osmosis-Research.png]Osmosis has three outliers, one being from Season 9, the other two being from Season 16/17[/url]. This leads me to believe that the issue stems from one of two things: • Some weapons have the Season 9 Perk, which is now broken and no longer proc's. • The weapon, or weapon class itself, isn't accepting the perk, which is less likely. I have no other scout rifles to test this with, so I can't rule this option out completely for the above.