For me, I had a few mistakes involving transferring the pizza. Once I put it on the peel, sometimes it felt heavy and wouldn't come off. Even after dusting it with cornmeal.
During my post recent time, I pre-cooked my crust for a few minutes in the kettle pizza, before putting the toppings on. After that, transferring became very easy. So that's what worked for me.
A few other times, I would finish the pizza, remove it from the Kettle Pizza, onto the peel, then drop the peel on the way back inside the house.
That happened 2 different times.
I now make sure all door obstacles are removed. So I leave the sliding door open when I know I'm going to bring the pizza in.
And I have a zippered sliding door around my gazebo. I now make sure that the zippered door is completely open, and the doors are completely apart. One of the times when I dropped the pizza, the zippered doors were apart, but the zipper was still in the top position, meaning that the doors weren't completely separated. Well, my peel hit part of the zippered door, and that made my drop my peel, with the pizza on it.
As I said, I now make sure the zippered door is completely apart, and that I can fit all the way though without my peel hitting anything.
I didn't think that such a minor collision would cause my to drop my peel. But once it happened, I learned not to take any chances.
For you, everything looks like it turned out all right.
What charcoal formation did you use?