The memento long term (white buff) disappears while in Summit on occasion. Not sure what is causing it. Not sure if it is just a visual bug not displaying the buff, but when it happens when you pick up a new confirmed kill you receive the short term orange buff but no longer will see the long term buff.
Hey folks,
Sorry to hear you are having issues with the Memento backpack.
This issue has been flagged to the team and they are looking into it further.