A Traitor Within is a side mission in Borderlands 4 that requires players to complete specific story prerequisites before it becomes available. If the mission is not appearing for you, the most likely cause is that you have not finished the necessary preliminary quests.
To fix the “A Traitor Within” not showing up in Borderlands 4, try going to the mission area on the map to see if it unlocks, and if that doesn’t work, check for updates, verify game files, or reach out to 2K Games support for a specific fix or a bug.
Borderlands 4 has launched to strong reviews. However, like most large-scale releases, the game has not been without technical hiccups.
Players have reported various issues since the game’s launch, one of which is the “Traitor Within Not Showing Up” error in Borderlands 4.
Without any further ado, let’s get started:
How to Unlock A Traitor Within
Some story-related side quests don’t become available until after you’ve finished the main storyline. A Traitor Within is a side mission in a chain of side quests. To unlock A Traitor Within, you must first complete the earlier missions:
Other Solutions:
Restart the Game and Console/PC:
A simple restart can sometimes resolve temporary glitches.
- Close the game completely.
- Exit from Console/PC entirely.
- Wait for 10–15 seconds.
- Launch the Console/PC and start Borderlands 4.
Co-op Progress Issue:
Check for co-op bugs. If you have played in co-op, your mission log may not have registered the correct progress in your solo game.
Revisit the mission start location to fix the issue, which may then reveal the mission.
Reset Map Area:
A soft reset of the area by leaving and returning has been known to fix some quest bugs
Update Borderlands 4
Ensure your game is up to date, as patches often fix mission-related bugs. For most platforms, simply restarting the game will apply any patches that have been automatically downloaded.
Verify Game Files:
Use your platform’s option to verify the integrity of your game files, which can repair corrupt or missing data.
- Start your PC or Device.
- Once your device is restarted.
- Navigate to Borderlands 4 and right-click on it.
- Select Properties from the menu.
- Under properties, select Local Files.
- Tap on the Verify integrity of game files tab.
- Once the process verification is completed, launch Borderlands 4 and check if the error is fixed.
Visit official forums or community pages to see if other players are experiencing the same problem. See if they have shared solutions to the issue.
Contact Support:
If the issue persists, submit a bug report to 2K Games support for assistance. The support team will further guide you in troubleshooting the error.
Rewards
Completing the side mission A Traitor Within in Borderlands 4 rewards you with an Echo Paintjob called Middle Name Danger. You must complete the entire chain to earn this popular reward.
A Traitor Within Mission Rewards:
- Rare experience and cash.
- Uncommon to epic shield.
- Vault Hunter Style.
- Echo-4 Paintjob: Middle Name Danger.
Chain rewards: Finishing A Traitor Within and the following quest, The Mole’s Gambit, unlocks the Cursed to Live head cosmetic for your Vault Hunter.
Borderlands 4’s post-launch period has been hit by technical issues across all platforms.
Though some fixes have temporary solutions, some are still pending. With more patches on the way, the overall experience is expected to stabilise in the coming weeks.