Let's take a quick little breather from feature implementations to fix a few bugs we introduced in the last episode. While we are now able to post photos, we have a few problems rendering them correctly inside of our UserProfileController. I'll first go over what the issues are regarding the UICollectionView.reloadData() method. Next we dive into the proper fix of url checking in our image loading process. Finally, I'll go into the fix of ordering our Posts as well as reloading our list every time a new post is uploaded.