I've been trying to fix these issues since yesterday so I would greatly appreciate any help.
Project File: ufile.io/ml3lpg4g
Inventory Bug (Two Right mouse Button clicked events run at he same time):
When an item is taken from the Inventory and when you hover over an inventory slot, RMB on it should only drop one item into the Inventory Slot, but instead it drops 2 items at first into the Inventory Slot and then you can normally keep adding 1 item on RMB clicked (When the Mouse is over an Inventory Slot of course).
The problem here is the Second Right button Clicked Event runs as well, even though only the first one should run, so it adds one item and then immediately another. But after that you can continue adding one item at a time with RMB clicked.
Crafting issue:
As you can see the crafting doesn't work, and that is because only the parent event runs and checks if 1 stone is on the Slot number 10. Even though that is true, its subevent doesn't run to check if 1 coal is in Slot number 11 to give a new item in output. How could this be approached?