Diablo 4 has plenty of annoying bugs. Some waste time. Some waste materials. This one goes straight for the throat. A fresh player report says a Mythic Unique Cache simply vanished after crafting, with the player losing two Resplendent Sparks and getting no item in return. That is not a minor inventory hiccup. That is the kind of bug that makes a season feel personally hostile.
The report was posted on Blizzard’s Diablo IV PC Bug Report forum on April 10. According to the player, the cache disappeared after crafting in Gea Kul, near the new seasonal area by Kael Rills the Butcher. They say they could still see it on the map, but it was not in their inventory, not in the stash, and not on the ground. In other words, the game seemed fully aware that the reward existed. It just apparently had no interest in letting the player actually touch it.
This is the kind of bug players remember
That matters because Mythic crafting is not cheap throwaway content. If a basic legendary vanishes, people groan and move on. If a Mythic Unique Cache disappears after consuming high-value crafting resources, the mood changes instantly. Blizzard’s Diablo IV forum indexes show the report as one of the newest active bug topics right now, which gives it enough heat to stand as a real current story and not just one lonely complaint buried three pages deep.
The awkward part: this may not be totally new
There is also some uncomfortable history here. An older EU forum thread from late December 2025 describes a Mythic Unique Cache disappearing from inventory after it was created and the player changed difficulty. A recent Reddit thread from last week also describes a player opening a Mythic cache and getting nothing, with one reply claiming certain town geometry can make loot disappear instead of dropping cleanly. That does not prove the current April 10 report is the exact same bug. But it does suggest cache-related vanishing acts may not be a one-night horror show.
When the reward system feels cursed, that is a real story
That is really the whole hook here. Diablo players can handle stingy drop rates. They can handle bad RNG. What they do not handle well is spending top-end resources and watching the payoff evaporate into UI smoke. Blizzard has not posted a public fix or explanation attached to this specific report yet. Until that changes, this is the kind of bug that will make every Mythic craft feel just a little more like a dare.
