Yoko theme not loading article banner images

So I was using Yoko theme for years with no problem …

Next, I tried several themes last few days, So then went back to activate my Yoko theme … Individual articles no longer load banners from the featured thumbnail (even though the featured images meed the 1101 pixel width requirement).

something broke and I’m trying to figure out what happened.

I added the following debugging output code to header.php in the theme:

<?php if (is_singular() ) : echo "<br> is_singular() true by Richard"; endif; ?>
 40 <?php if (current_theme_supports( 'post-thumbnails' ) ) : echo "<br>current theme supports post thumbnails - by Richard"; endif; ?>
 41 <?php if ( has_post_thumbnail( $post->ID ) ) : echo "<br>post has a thumbnail image  by Richard"; endif; ?>
 42 <?php
 43       if (  ( /* $src, $width, $height */ $image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'post-thumbnail' )) ): echo "found true"; endif;
 44       echo "<br> source image[0]:";echo $image[0];
 45       echo "<br> width image[1]:";echo $image[1];
 46       echo "<br> height image[2]:";echo $image[2];
 47       echo "<br> post-ID:"; echo $post->ID;
 48       echo "<br> defined header-image-width threashold:"; echo HEADER_IMAGE_WIDTH;
 49 ?>

Which prints out the following lines in the browser:

is_singular() true by Richard
current theme supports post thumbnails - by Richard
post has a thumbnail image by Richard found true
source image[0]:https://www.richimages.net/wp-content/uploads/2016/04/IMG_1602.png
width image[1]:262
height image[2]:350
post-ID:7666
defined header-image-width threashold:1102

Any ideas why the width and height are off … they seem to alway be the same, and they are always wrong …

—–
more background (which may or may not be relevant ) … during trying several other themes, I did load a plugin called: to remake all images from the parent image … and executed that one … however, not sure this really broke things as the thumbnail images all seem to be the same, and are larger than the minimum width requirement …