TWD Double Crusted Blueberry Pie

First, Amy of South in Your Mouth picked this weeks TWD.
Amy, I LOVE blueberries and so does hubby! The flavor of the pie is phenomenal! Now, with that said. . .I am asking for help from my fellow TWD bloggers =. If you scan down to the last pie picture, you will see that my pie crust literally melted away in the oven. I know I am tired from cooking so much over the 4th BUT I went over the pie crust recipe again and what the heck did I do wrong?

First, I used butter that was NOT frozen. I did put the butter in the freezer for 20 minutes. The shortening WAS frozen. Also, after making the pie crusts, I put them back into the refrigerator until I was done mixing together the ingredients for the blueberry filling.

Finally, after assembling the pie, I did NOT put the pie in the refrigerator for 1/2 hour like Dorie suggested. With all the above information, Could someone maybe see where I went wrong? The pie flavor is awesome and I want to make this specific blueberry pie recipe again. . .this time when I am not tired but any input would REALLY be appreciated =D.

The recipe chosen included a pie crust called Good for Almost Everything Pie Dough found in Dorie Greenspan's Baking From My Home to Yours, on pages 442-443.

Here, I have pulsed the butter and shortening with the dry mixture.