Image cropping isn’t working correctly when using Offload Media

Aye, it’s best if I adhere to policies – as I mentioned in my comment, the fix was painfully obvious updating the provided code to the following & then calling for set image sizes, even if I then had to first define the image sizes, resolved the issue:

// Some picture
        $wp_customize->add_setting( 'some_setting',
        array(
            'default' => '',
            'sanitize_callback' => 'esc_attr',
        )
        );

        $wp_customize->add_section('some_section', array(
            'title' => __('Some Picture', 'textdomain'),
            'priority' => 10,
            'sanitize_callback' => 'esc_attr',
        ));

        $wp_customize->add_control( new WP_Customize_Media_Control( $wp_customize, 'some_setting', array(
            'label'    => __( 'Some Picture', 'textdomain' ),
            'section' => 'title_tagline',
            'height'      => 250,
            'width'       => 250,
            'flex-width'  => false,
            'flex-height' => false,
            'settings' => 'some_setting',
            'mime_type' => 'image',
            'transport' => 'refresh'

        ) ) );