TypeError: Drupal\imagemagick\ImagemagickExecArguments::add(): Argument #1 ($arguments) must be of type array

Problem/Motivation

TypeError: Drupal\imagemagick\ImagemagickExecArguments::add(): Argument #1 ($arguments) must be of type array, string given, called in /var/www/html/web/modules/contrib/image_resize/src/EventSubscriber/ImagemagickEventSubscriber.php on line 71 in Drupal\imagemagick\ImagemagickExecArguments->add() (line 124 of /var/www/html/web/modules/contrib/imagemagick/src/ImagemagickExecArguments.php)

Proposed resolution

Make sure an array is passed to ImageMagick.