Regarding the issues occurring in the Switch version of Stardew Valley v1.6.15 build 11,
I've been investigating them for about a week now.
Here's what I've found out as a result.
Issue Details:
When crafting or cooking, the following "Item Group A" items are incorrectly recognized as "Item Group B" items.
As a result, "Item Group A" items are consumed as materials and the item is created (regardless of whether a workbench is present during crafting).
An interesting point is that items are not misidentified on a 1:1 basis.
Items belonging to "Item Group A" are misidentified as all items within "Item Group B" during crafting.
Item Group A (Materials mistakenly recognized and consumed due to malfunction):
- Torch
- Hay
- Crab Pot
- White Algae / Green Algae
- Sea Jelly / River Jelly / Cave Jelly
- Seaweed
- Coffee
- Oil
- Rice
- Sugar
- Vinegar
- Wheat Flour
- Energy Tonic
- Muscle Remedy
- Field Snack
- Bug Steak
- Tent Kit
- Cookout Kit
- Butterfly Powder
- Prize Ticket
- Golden Animal Cracker
- Lucky Purple Shorts
- Trimmed Lucky Purple Shorts
- Stardrop Tea
- Dragon Tooth
- Fairy Dust
- Horse Flute
- Qi Seasoning
- Enricher
- Pressure Nozzle
- Galaxy Soul
- Blue Grass Starter *1
- Geode / Frozen Geode / Magma Geode / Omni Geode
- Artifact Trove
- Golden Coconut
- Mystery Box / Golden Mystery Box
- Warp Totem: Beach / Warp Totem: Desert / Warp Totem: Farm / Warp Totem: Island / Warp Totem: Mountains
- Rain Totem
- Treasure Totem *1
- All Trinkets
- All Slime Eggs
- All Artifacts / Golden Pumpkin / Treasure Chest / Pearl
- All Catalogues
- All Furnitures / All Wallpapers / All Flooring Types
- Secret Notes
- Berry Basket (in the Linus's Quest)
- Prismatic Jelly (in the Wizard's Special Order Quest)
- Ornate Necklace
- Golden Tag (in the Trout Derby festival)
- Calico Egg
and more Quest Items and Special Items ?
Item Group B (Materials that should be consumed):
- Moss
- Mystic Syrup
- Furnace
- Worm Bin
- Sea Jelly / River Jelly / Cave Jelly
*1:
Since Blue Grass Starter or Treasure Totem crafting materials include moss and mystic syrup from Item Group B,
simply performing this crafting consecutively will ultimately leave only one item remaining. (wasting materials)
If you want to craft a large number of Blue Grass Starters or Treasure Totems, the following precautions are necessary:
1. Do not use a workbench
2. Empty your inventory
3. Place the required materials in the bottom-right slot of your inventory
4. Perform consecutive crafting actions
5. Be careful, as once materials run out, the crafting will start consuming the Blue Grass Starters or Treasure Totems themselves
Incidentally, due to this bug, the Treasure Totem can now be crafted using only Hardwood and Torch.