Topic category: Troubleshooting, bugs, and solutions
I'm creating quivers for my mod and I noticed that there is a problem, when you move the quiver while the GUI is open and then move the arrows from the quiver to the player's inventory the items duplicate, I saw that there was already a problem similar to this in the past and it was fixed https://mcreator.net/tracker/issue/65057.
I tried to make the GUI only open in off-hand, but that way the items disappear when the GUI is closed.
I'm using MCreator 2022.3 - Minecraft Forge 1.19.2 (43.1.7).
Use an item with a GUI -> Put something inside -> Move the item containing the custom GUI -> Move the items inside the custom GUI to the player's inventory -> close the GUI -> Open the GUI.
Here you can see how the duplication works: