You can switch back to the one you prefer immediately after selecting the other skin or just keep the new one.
After that, push Circle to back out of the skin selector.
I also suspect this is the case and it makes perfect sense why this workaround works if true.
Making the game access the disk for a small data call, like changing the skin, seems to prevent it from choking on the much larger data calls, like pulling in the World list. Can't even re down load packs to make them work because there is a bug which duplicates at least one pack on the menu.
I recently acquired the PS3 version of Sims 3 and have been unable to install it.
When launching the game it says it needs to update, which completes successfully.
To acquire a replacement game Disc you will want to refer to your manual for warranty information specific to your product.
The options we recommend for game replacement, if needed, are as follows.
If I run the game without downloading the latest version it will 'see' the worlds on the menu but obviously can't open it as the updated blocks that it was built in aren't there. Actually the same kind of symptoms began with the previous update but then the loading screen was stuck only occasionally.
Once the icon disappears, then you can go into "Play Game" and your worlds should show up fairly quickly and they should be accessible again!!
Using this workflow I was able to load my Son's world successfully many times in a row, so I don't think this is coincidence.
Also, do not use or insert any CD/DVD drive cleaners into the Playstation 3 as doing so may cause damage to the system.
If the game Disc does not work in another system, this is a good indicator that the Disc is damaged or defective.