I rent a sim(Avant) through an agency, I have estate controls, the land is deeded to a group I own. Hanging out on the sim, nothing unusual, maybe ten or so of us on the sim, three of us nearby. I moved some furniture, we opened a few boxes and took their contents into our inventories.All three of us using the Phoenix viewer. All three of us crashed simultaneously- not sure about the others on the sim. On returning, the furniture I had moved was back in its original positions. The contents from the objects we had rezzed and opened were still in our inventories. We cleared cache and returned, reset the sim just in case, even tried viewer 2, nothing changed this apparent "roll back" that has occurred on the sim. Before I do anything else, I want to make sure nothing's WRONG with the sim. Has anyone heard of this happening and/or have any idea what might have caused it? Some of the objects I moved were high price non-copiables so I'm reluctant to take them into my inventory or move them again just in case.