Anyone have issues with Wondymoon surfaces?

I'm a big fan of creator Wondymoon ( www.thesimsresource.com/artists/wondymoon/ ) but I've been having an issue with all of their surfaces. I can place a sideboard, table, or counter, but when I put an object in a slot my game lags for a second, then the object sits in the slot, then the sound effect plays a second later. If I exit game or the lot and reload, all of the objects will be in the home inventory rather than their slots. Once they are in the slots the same thing happens if I delete the object. Lag, object deletes, then the sound effect plays after more lag. It has happened on two different computers, one Mac laptop and one Windows desktop, though I did transfer my mods folder so the problem could be with my individual package files.

I asked a friend and she cannot recreate the issue. She did have an issue with Wondy's most recent set (Zirconium Office) not showing in game, I have not tested it myself. 

Any ideas? Have any of you had this happen?