They have not implemented any tech that makes it possibel to stack items. No other item in the game is truely stackable. A system like this needs to be 100% failureproof, so people don’t lose items.
They are working on it, it will come eventually.
They did remove and change this already based on feedback, I am sure they will constantly improve this, if enough people give feedback about it.
Crafting material first goes into your inventory, so you know that you looted crafting material and you feel more attached to it and feel like thpose are items instead of a pure ressource.
This also helps new player realise what they picked up. Because if it would directly go into the crafting stash a plaer might not even know what they picked up.
Never had this happen, you should definitely report that in Bug Reports and provide some video/screenshots.
All changes in the recent patches were retroactive, so already owned items changed
The stash system is somethign the devs eventually want to continue to improve and I am sure we wil lget even mroe options.
Also pretty sure Mike said future plans with keys was to have them modifiable like maps in PoE. That was a while ago though, don’t know if those plans changed.
Pretty sure I’ve seen it said that originally this was setup specifically for trading, and has since been squashed so the plan is to make it automatic in the future.
