Hello!
I came across something that I'm guessing is really simple to figure out, but I can't seem to find a solution.
I have 2 characters to which I can switch between scenes. I want them to gather different items, and to stick with them as I switch. My actions didn't have the "affect specific player" before, I could add the items normally but they disappeared as I switched. Now, I checked "affect specific player" when adding the item, and the item simply will not show up in the inventory.
My version is 1.58.
Thanks in advance

Comments
Can multiple instances of the item be carried? Are you using item categories?
That option is generally only necessary if you want to affect a player who isn't currently being controlled. Is this Action still adding the item to the active player, and are other items showing up correctly?
What is the state of the All players share same Inventory? option above the list?
We'll need to do a bit of debugging to learn what's going on. Inside RuntimeInventory.cs, there's a function "void Add" (around line 319) that contains:
Directly above that, insert the following line:
What does the Console output when the Action is set to add it to a specific (and current) player?