The land in question does not belong to me but the owner has given me land manager rights as he has no access to the internet for a while. This is what happened:- I logged in one day and the whole of one parcel had been raised to about waist height, we reverted to the save position and it was fine until about a week later I was standing on the parcel next to it when the land raised before my eyes! The whole of the parcel I was standing on was raised the same as the first time, to about waist height I didn't notice anyone around but might not have been quick enough to notice. By the time I got over the shock and my brain kicked in and I started to check who was nearby someone could have already teleported away or logged out.(this was before I had terraforming rights, just in case anyone thinks I may have done it accidentally). We reverted again, but a week later, the first parcel was once more raised, this time by more than double the height of the other times. Has anyone any idea what could cause this? I don't know if it's a bug or someone griefing or something else entirely.The land is NOT set to anyone can edit terrain, there are a couple of people besides myself and the owner who can edit but it's definitely neither of those. Can LL check through logs and find out what happened? As I said, the owner has no access so can't file a report but has asked if I can find any info about it, I'd really appreciate any info! Thank you, Im going through the tips you gave me now