Just tried this on the first version of Blender that included cell fracture (2.64), and can confirm that this bug DOES NOT occur (I used the same .blend file that fails in 2.74). UV coords are retained post-fracture, all the chunks look just like their parent object texture-wise.

WOW so just discovered something new.

I am having exactly the same problem as the original poster, and it's infuriating. Have spent 2 weeks tinkering to see if I can get it to work, and no joy. I actually got it to work twice my first couple of tries, but nothing since then.