WordPress HTTP Error when uploading images

After upgrading this site to WordPress 4.5 an HTTP error began to occur when uploading some images.
I found the following defect, which has not been resolved at this time: Defect #36534

There are a couple of workarounds which can be attempted to resolved this issue.

1. Add the following to the .htaccess file

    SetEnv MAGICK_THREAD_LIMIT 1 

   Unfortunately this fix did not work for me. Be aware that this fix will limit imagemagick to a single thread if you have multi-thread capabilities available.

2. Add the following to your current themes functions.php

   add_filter( 'wp_image_editors', 'change_graphic_lib' );
   
   function change_graphic_lib($array) {
   return array( 'WP_Image_Editor_GD', 'WP_Image_Editor_Imagick' );
   }
   

   This workaround resolved my image upload issues by forcing wordpress to use the GD Image Library instead of imagemagick. You will likely want to revert this change once a fix has been released.