Catch Box Pro Child – missing Header Image

Hi, I've just created a Child Theme for Catch Box Pro (version 1.2.3.1) so that I can customise the catchbox-posted_on function to not display "by Author" details and link for posts (there's only 1 author, me, and I don't want to display my name over and over again). I followed the instructions for creating a Child Theme and activating it in the admin area. However, as soon as I did this, several Header settings reverted to their defaults and my logo disappeared. I clicked Customize on the Child Theme, found where I could set the Site Title & Tagline text colours, but there was no Header Image option, only Background Image. I wondered if there is some other setting I've missed in the Child Theme style.css file apart from what I entered from the tutorial (as follows): /* Theme Name: Catch Box Pro Child Theme URI: http://robertfairhead.com/ Description: This is a custom child theme I have created. Author: Robert Fairhead Author URI: http://robertfairhead.com/ Template: catch-box-pro Version: 0.1 */ @import url("../catch-box-pro/style.css"); Regards, Robertf