Writin_Reg I opened a game I started a few hours before applying the patch.
When I did the patch I started with a new Sims 3 folder and downloaded all of my store content again and then I installed my Sims I had in my library & turned into CC so I could keep them without having to copy my library files.
When I did this and opened the game mentioned above, after a few seconds I got a freeze. I had to use Task Manager to close the game.
So I thought I'd put some mods into the game. I added Master Controller, Overwatch and Error Trap.
I opened the same game and Error Trap found a few errors. I've had no freezing since.
My errors related to the Moondial - and I think that has been reported before this patch as being a problem. And one Sim had an error, and then when I get her to use the spellbook she jumps away from it. So I decided not to get her to use the spellbook. The other Sims without errors can use it fine.