Hello
Got this bug today. Created new char and go to DZ.
I got normal XP for discovering DZ zones and gained a Field Proficiency Cache, but go to contaminated items and needed to extract!
I know this is very rare occurrence (nobody expected gaining FPC inside DZ because all XP gained counts towards DZ rank), but not normal this cache got contaminated...
Best Case Scenario: It is a bug and can be easily fixed.
Worst Case Scenario: Try to extract that thing and pray no one hijacks it.