Clearing your raider for Expedition is a pretty big deal in Arc Raiders. It involves tons of prep and a dedication that you're willing to start the next season with a fresh character and stash (alongside some perks that the Expedition offers your new avatar). It's not something that everyone is willing or able to do, which is why this latest bug left players in such disarray.
The bug in question impacts those who manage to finish the 100K damage challenge: Once completed, players would be automatically signed up for the upcoming fourth Expedition, whether they wanted to be shoved out into the wasteland or not.
