Isla Paradiso stuck on loading

I know this type of thread was posted by maybe two other members but what helped them didn't help me.
So every other town/save game is working just fine, but if I try starting a new game with Isla Paradiso, the loading bar fills up to almost the very end and then doesn't go through. Even the cursor continues to swirl just fine and the tips keep cycling - only the bar gets stuck.

I tried renaming my Sims 3 folder, and it did the same thing.
What else can I try?
Thanks for your time

Thanks for responding
I let it load for probably an hour once. It usually takes long to load, but not more than 10 minutes.