Hi! I've also noticed a problem downloading items (from their specific pages) after purchasing bundles.
Here's what I've done.
1. Go to the actual bundle page.
2. Hit 'download' up where it says 'you already purchases this bundle'
3. Then search for the specific item and hit the 'download' button that is presented there.
If that doesn't work for you, let me know and I'll email you the files myself.