The flickering, invisible equipped items is a real pain. Updated to 4.11 Preview to check to see if it was fixed and no luck. Made sure to double check I was complying with your specific tutorial instructions and guidelines.
I know it’s an engine thing, but it really puts on the hard breaks on when trying to expand or modify the item library. Would love to explore workarounds.
This is really great item BTW. Seriously impressed all round.
One small thing I’ve found. Using the in editor preview, I dragged the character and item windows fully off the game pane and they are gone forever. Can’t get them back.