I konw it has happened before with someone else, but this time is a bit different. DLC item is totlly disapper even in steam inventory.
I bought Beating Heart Chest DLC recently, and I opened the box in Gorge beta server, and I transfer back to the main server the item I bought are all gone even in steam inventory. Then I transfer back to beta server again and I saw all the DLC item are stil there .
I try to delete inventory-cache file, but that doesn't work, I don't think it do anything with the caching, the item is complete gone.
I am think if open the box in the beta server first than every DLC item will be gone.
It makes me feel very disappointed that I nerver use the item in the real game.
I've puted some link of my screenshot on Bug Tracker.