Diablo 4 already has enough normal chaos without adding “maybe the economy is broken again” to the pile. But that is the mood right now after a fresh April 12 post on Blizzard’s official bug forum claimed the duplication bug is back. Blizzard has not confirmed that publicly, and at this stage it is still a player report, not a proven full-scale incident. Even so, duping accusations are never small. The second that word shows up, people stop talking about one bug and start talking about whether the whole loot ecosystem can be trusted.
The current report does not prove it, but it is serious enough to watch
The thread itself is blunt: “Duplication bug is back!” The player says the problem has “recently returned,” points to item-selling activity on outside trading platforms, and hopes Blizzard gets it fixed before Season 13. There is also a second same-day Diablo IV forum topic, “Serious Copy Bug！”, which adds a little more heat — but not as much as it first sounds like, because it appears to come from the same poster, not a wave of separate confirmations. So the responsible read here is still: fresh allegation, not established fact.
Why this hits harder than a normal bug thread
This is the real hook. If a dungeon breaks, players get annoyed. If a cache disappears, they get angry. But if duping is even possibly back, the conversation gets darker fast because it touches trading, item value, and the basic credibility of the game’s economy. That is exactly why Blizzard previously had to act hard when Diablo 4’s economy got hit by a duplication exploit. Back in 2024, Blizzard temporarily disabled trading over the issue — something we covered in Blizzard Shuts Down Diablo 4 Trading Amid Item Duplication Exploit. This is not that same event, but it is why the current claim will make people nervous almost instantly.
It also lands at a bad time
Part of the problem is timing. Diabloz has already been covering a run of Diablo 4 stories where rewards, progression, and item behavior feel shaky — from Mythic caches disappearing after craftingto Dawnfire stacks vanishing at World Bosses. A duplication accusation drops right into that atmosphere and makes every other systems bug feel a little more sinister. Blizzard may end up proving this thread is noise. But until it says something, the rumor alone is toxic.
