I have the latest UCC and UInventory. I've followed the video tutorial on setting it up. It seems to be almost there. One issue is the lack of category tabs shown in the UI:
Adding categories to your UI is optional, Having all the item categories be used as tabs would be quite limiting. Item Categories are primarly used to organize your items in categories and they can be nested example: All Items -> Weapon -> One Hand Weapon -> Dagger
Tabs work using filters, and one of those filters can be a category filter. You can add them very easily using the UI Designer
Add as many tabs as you wish, rename them and add a category tab.
In the inspector make sure to assign the category for each tab. The filter will match the item inherently. Using the previous example if your item is a Dagger it will be displayed if you filter by Weapon.
Make sure to go through UI Designer documentation and read all the options available
