iOS 8 gray box over UITableView

Question

I am making an app where I need to use UITableViews to display content in an organized fashion, but since I updated to iOS 8 and Xcode 6 I have been getting a mystery gray box over almost the entire view. This can be seen in the image below. This does not happen on every UITableView, just some (with no apparent pattern).

Answer 1

In iOS 8, you must specify a height in the UITableView's delegate:

-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
    return 44.0;
}

In iOS 7 and earlier, a default was accepted. See this link for more information.