after sim restart new items had disappeared and been replaced by what was there before

[lausard Wildcat]

was redecorating house and replaced certain items with others.  after sim restart these new items had disappeared and the ones I had taken back to inventory were there again (inventory items were still in inventory).  linden labs backlogged the sim and still ended up with the orginal items rather than the replacements.  a map on the wall had completely disappeared and as no copy presume has gone for good.  the lamp which I had changed for a red one was replaced by a yellow one (again no copy).

[Rolig Loon]

If you asked LL to reset the sim to an earlier state, they did exactly what you asked for.  Resetting recovers EVERYTHING to exactly the way it was at the time step you requested.  All terraforming is reversed, moved or deleted objects are restored to their previous positions, earlier texturing is restored, newly-added features are removed.........  It's like the old Groundhog Day movie.