Widget area stealing content of area below it

https://codex.www.ads-software.com/Forum_Welcome#Include_as_much_information_as_possible

is using a child theme

child theme of what theme?

The register_side bar code is in the child theme’s functions.php

what is the exact code of that?

Child Theme of Editor.

register_sidebar(array(
		'name' => 'Homepage - 300x600',
		'before_widget' => '<div id="%1$s" class=" widget %2$s">',
		'after_widget' => '</div>',
		'before_title' => '<h3 class="widget-title">',
		'after_title' => '</h3>',
	));

is this 'name' => 'Homepage - 300x600', unique to that register_sidebar() ?

what theme is the child theme based on?

Yes it’s unique. It’s referenced in the child theme’s home page as:
<?php if ( !function_exists( 'dynamic_sidebar' ) || !dynamic_sidebar('Homepage - 300x600') ); ?>
The child theme is based on a theme called Editor by AWESEM

the best will be if you contact the (parent) theme’s developer for support.

this forum here cannot really help with commercial themes not at least because the code is not freely accessible – https://codex.www.ads-software.com/Forum_Welcome#Commercial_Products

I’ve seen this behavior before when using child themes, which makes be think it’s more related to how WP works and not the theme, but I could be wrong. I’ve now manually moved the settings ‘up a level’ and all is OK. Thank you for your replies.