I'd really like to know a solution for the flashing blue problem....I get it with Maxis objects, too:
The luxury addon bed, the one with the horizontal stripes at the head end, sometimes has flashing blue stripes and I do not have any recolours of that item.
Then there are some accessoires which will always flash unless I walk the sim to a mirror, but saving or not, it occurs the next time I start the game...*sigh*