Two days ago, Bungie turned off the Destiny 2 servers while the studio looked into a problem that had players apparently losing progress on in-game challenges.

On January 24 at around 2:00 p.m., Bungie tweeted that it was taking Destiny 2 offline while it investigated an “ongoing issue causing certain Triumphs, Seals, and Catalysts to lose progress for players.” A few hours later, at 5:51 p.m., Bungie tweeted that it had possibly found a fix for the issue and was testing it, but was unable to specify when or if Destiny 2 ’s servers would come back online.

Nearly 12 hours later, at around 9:55 a.m, Bungie announced it had finally solved the problem and servers would be coming back online following a hotfix.

According to Bungie, shortly after releasing a previous update for the game (Hotfix 6.3.0.5) players began reporting that many Triumphs, Seals, and catalysts had vanished.

Apparently, due to a configuration error, Bungie accidentally “re-ran an older state migration process” used in a past update.

Because of this error, the tool copied old data from this past update into the current version of the game, which basically undid some players’ recent in-game accomplishments