I found a white dragon up on a snow capped peak in The Storm Horns, and surrounding its treasure were a number of invisible levers. I found eight: there appear to be three at ground level a bit down the slope from the chest; another two slightly elevated further up the slope towards to the chest; and another three higher still in the air further up the slope about in line with the chest.
I pulled the ground level ones which were accessible. I could start pulling the mid-air ones, but couldn't succesfully complete the pull before being out of range. I couldn't manage to land on them. I tried casting True Seeing, but my character doesn't otherwise have good spot or search skills.
Here is a screenshot of the area in case that helps:
Does anyone know what the purpose of these is? Is it a puzzle? Did I miss some levers? I couldn't figure it out.
A lot further down the mountain I found a floating barrel, which is maybe related? A screenshot of me on the barrel is:
Is the simple explanation, that these are bugs, the correct one?