Missing Structures

Over the last 2 days I have lost 5 structures:
Details:
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- - 4 x Drying Frames including the rabbit skins on them
- Ore Smelter which required 2 Iron Bars to complete
Details:
- The 4 x Drying Frames vanished while offline or out foraging so I cannot really comment.
The Ore Smelter went missing while I was in camp. As mentioned it only required 2 Iron Bars to complete and was placed between a Coal Clamp, Kiln and a Pair of Compost Bins. At the time I was working on my homestead making pots and a second Fire pit.
I had the Kiln burning and checked it, 2 bricks were ready for an urn so, I grabbed the bricks made the urn and put it into the Kiln. I noticed the Kiln needed more fuel so grabbed some branches. As i went to put the branches into the Kiln I noticed the Ore Smelter construction marker was missing, I've been running into the thing for nearly 2 days and it is gone. Theft was not an issue as the construction site was always visible.
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