Lost tower unique strongbox disappeared

Bug reference ID: 1,335,463,321

Commanded minions onto the Unique Jeweller strongbox, and the strongbox disappeared

I also just went to click on an Unique Jeweller Strongbox and it disappeared on me.

I just had the same thing happen with the Jeweller one too, I used my minion to open it and it moved the strongbox (Guessing the strongbox is considered a mob or totem or a world item that is moveable/shoveable) and that de-spawned it. Guessing that's what happened. In Deserted map.