Last month, Fortnite players discovered an excavation site towards the south-east corner of the battle royale’s map. The rocks in the original dig site had 100,000,000 hit points, and required players to work together over several days to clear them. More sites appeared, but it didn’t take long before players had emptied them all, uncovering first treasure troves and then pools of lava.

Today, with the arrival of Fortnite’s latest patch, players discovered that all of their hard work had been undone. Overnight, it seems that Epic has filled in every single site, replenishing each rock back to 100 million health.

Given that this has happened before in isolated spots, it’s possible that this is a bug, rather than an intentional change. That said, however, it seems unlikely based on what’s happened before that every single site would be refilled, suggesting that the refills are in some way related to the game’s end of season event. There’s been no concrete info on Fortnite Season 9 yet, but this change feels like it could be the next step on the journey.