This morning I added in the Inventory Asset Template (https://developers.meta.com/horizon-worlds/learn/documentation/code-blocks-and-gizmos/inventory-asset-template) and have tested in VR. I was able to make the purchase of the laser, but when I choose 'Use' it just hangs. Going back into mobile I can see the Inventory icon and the laser in the inventory. I hit 'Use' and it say's 'Item Used' however nothing happens. I am expecting it to spawn in front of me, so maybe missing a step? Also, however, I still get the same mobile 'error' when attempting to buy an item using the IWP Gizmo.
I have followed this tutorial (aside from the script elements) https://developers.meta.com/horizon-worlds/learn/documentation/mhcp-program/monetization/meta-horizon-worlds-inworld-purchase-guide
Any tips welcome as I am working on this today.