Gone missing

I just moved an object that is 119 prims from my lost and found folder onto my own land. Some of it must have overlapped next door as it got "returned" to me saying the land was over the prim limit. However i dont have the item in my inventory and my land details say that i have the 119 objects "selected/sat upon". I dont have anything selected or sat upon as far as i can tell, i have even re-logged.

So i appear to have lost the object which cost me quite a few lindens as well as not being able to get rid of these selected prims on my land.

Anyone seen this before and got a fix for it?

By the way, these items do not show up as owned by me or anyone else so i cant return them.

With all the issues that SL has had as of late, I would give it some time before I would believe the prims to have 'gone missing'.

I have had things returned to me on purpose that didn't show up in my inventory for over a day later. Or ships that I've been remote controlling that flew off-world that didn't come back to my inventory until the next day either.

Could it have gotten moved underground or very high in the air? And If so how would one find and move it?