@tibber – Hi, I know what happened to you. I also met this problem today. Because this plugin will use GD(dynamic graphic lib) for handling pictures. You could try this.
Uncomment the line “extension=php_gd2.dll” in php.ini and restart PHP.
Change:
;extension=php_gd2.dll
To:
extension=php_gd2.dll
Maybe you could check the code in line 31 of “cyclone-slider-2/inc/class-image-resizer.php”
