Hello! I am trying to add a very simple inventory system to a project I’m working on, this inventory would have one slot having only enough space for one item at a time. I started following a YouTube tutorial (I’ll link it below for reference!) altering it so that there is only one inventory slot (and no stackable objects) however I am having some problems.
The placeholder icons will not appear in the inventory slot despite the items registering being picked up AND this means multiple object can be picked up despite having one slot available.
(Video of this:)
I’m not sure what I’ve done wrong looking through the video so any help or advice would be extremely appreciated! 
(Screenshots of the inventory slot:)
I can upload more pictures if this would be helpful! Thanks so much for reading!
Here’s the video tutorial:
Unreal Engine 4 - Inventory System Tutorial (Free Download) - YouTube