Procedural Foliage Placement Tool

Hi. I’ve purchased your tool and am working my way through the options. I’m a little confused by something and I’m not sure if it’s a bug or I’m missing something, but when I add more than one array element to the list of HISM’s or actors to spawn it will only spawn element 0 (zero)? The additional element never spawn even a single instance.
Cheers.
John