Seriously Weird SL Behaviour

Ok I have seen all kinds of weird stuff on SL but this one is new for me.

I was selling some land & attempted to take around 12 Heart Trees (lovely silver birches) to my inventory. I didn't check until I had 'taken' almost all of them, but discovered none had gone into my inventory. Tried clear cache, relog etc nothing, so had given up on them. Well today (a day later) I get a load of items returned to me from a parcel on the same sim, but at the opposite side to where I had the trees, and all returned via auto return, rather than parcel owner return.

You've guessed it... it was my trees clumbed together in 2 coalesced items. I rezzed them & discovered they were all 'broken'. Not sure how best to exlain this but as if they had all been unlinked & relinked in the wrong order. Small branches where trunk should be, huge gaps in the truks etc. Now the trees are all modify, so I can't prove I didn't do this to them, but seriously this is the weirdest thing I have had happen!

Can't figure out how to post a pic but if anybody is curious they are sitting out on my half built sim here: http://slurl.com/secondlife/Seaview/106/91/21

Oh, I need a question don't I.. erm.. has anybody seen this happen & is there anything I possibly did to cause it?

I don't recall it happening because of taking the objects into my inventory, but not long ago I had objects that were assembled wrongly - waaaay wrongly. No idea what caused it though, and it only happened at that time.

Asset server strikes again.