Multiple characters' inventory

I've got two characters. When character 1 uses a specific action on a door, it should put an item in character 2's inventory. But it doesn't. So I tried binding F2 to adding another item to character 2's inventory, and when I press it, BOTH items appear in character 2's inventory.

have you tried using the "give item to other character" (or something like that) directly after picking it up with your active character?

I can't find that command. I just find the "Give all items to other character" command. But it is still odd that the items do not appear in the inventory until another item is added to the same character's inventory via key event.

mhhhh... i just dont see why it should be an issue, unless there is a bug...
so you have an action like:

char_X is active
when you pick something up you call
add item to char_Y

this doesnt work?

give would be: remove item from char_X, add item to char_Y obviously

Yes, let me give a breakdown of what happens.

I click on an action area in a room with char_X, the action goes
show_message to char_X
add item_1 to char_Y

I then switch to char_Y and check it's inventory, but it's empty. I bound F2 to the following action:
add item_2 to char_Y

When I press F2, item_1 and item_2 both appear in char_Y's inventory. This happens even if I press F2 while still controlling char_X

Finally found the problem. The second character was not placed. My bad, sorry.