Thx, brother! I had a very simular problem which was driving me mad. Your comment helped.

I found a fix for my issue. If anyone else is doing the same, here is how I fixed it: So I wanted my inventory to be togglable so I added a bit of code to enable and disable look, mouse movement, and the activ/not active of the inventory screen. my problem came through he fact that when loaded in, the slots were not create dyet because the inventory was off by default. so, if I picked up an item it would not show in the inventory. If I open the inventory after I picked up an item it would be blank, but I could move the "empty" slot and the dragged item would be the item I picked up. So, here is how my player script looks for this function (I also changed how the save/load function works) private void Update() { HandleInventoryToggle(); HandleSaveLoad(); } private void HandleInventoryToggle() { if (Input.GetKeyDown(KeyCode.Tab) || (Input.GetKeyDown(KeyCode.Escape) && inventoryActive)) { ToggleInventory(); } } private void ToggleInventory() { inventoryActive = !inventoryActive; Inventory.SetActive(inventoryActive); Cursor.visible = inventoryActive; Cursor.lockState = inventoryActive ? CursorLockMode.None : CursorLockMode.Locked; playerLook.enabled = !inventoryActive; } private void HandleSaveLoad() { if (Input.GetKeyDown(KeyCode.O)) { inventory.Save(); equipment.Save(); } if (Input.GetKeyDown(KeyCode.P)) { inventory.Load(); equipment.Load(); } } and all I had to add to make this work is adding this bit of code to the UserInterface script: slotsOnInterface.UpdateSlotDisplay(); I added it to the start method, that way it will update on start and be able to hold the items.

Hi, so I had this issue the ID on one of my scriptable objects somehow got reset. So I had two items that both had ID of 0, I went and manually reset it, and it fixed it!

I guess because they are private, not public