Invisible Snakeskin

Snakeskin appears to be invisible in DS: Shipwrecked and maybe in DS: Hamlet whenever dropped to the ground, same as the Webber exclusive Shamlet Mask.

I was playing Shipwrecked and saw an invisible item floating in the water. I couldn't get any information by moving my mouse over it so I didn't know what was floating there but I could pick it up with my 'Do Action'-Button. It turned out that there was some Snakeskin floating and it became visible in my inventory, but as soon as I dropped it back to the ground, it became invisible once again.