So I made almost what I would. The aim is to get the pots from the inventory to the correct position on the main screen. In the inventory the pots are connected to slots. (I fix it on the first step, but anyway I positioned them on the real same origin.)
If the player move a pot on a "wrong" slot than it goes back to inventory. (I solved it with the frame difference. All inventory slots has more pots, because later on it will be necessary. And here comes the first question. It is visible, that they are under each other. (I attached a pic.) (The order of the pot and pot sign is correct, so it shouldn't be shadowed anyway. :(
The second problem is: When in the game the player move a pot to a slot that is empty, (and the frame is correct), the pot will stay in the slot. If there is already a pot (Pot1), than it should go back to the original place of it in the inventory. The new pot (Pot2) should be placed on the slot. My problem is SOMETIMES the Pot1, andPot2 is stays there without any reason. If I remove any of them it can be corrected, and works as it should, but I wouldn't give it to the players like this. (Made a video of this.) I attached the cp3 as well.
drive.google.com/drive/folders/1VrcaDP_EuH1CV3IZgAisVcds6q7j6FWp