Thanks for the reply. I purchased the plug-in and did run into what I assume is a conflict. I don't have Twitter to message you directly, but in a nutshell, it looks like Phoenix Kage Desu's ABS-Z and possibly the AnimaX plugins aren't compatible. I created a new project and put your plug-in there just to make sure I'm not a total idiot, and it's perfectly plug-and-play - and gorgeous, by the way. I really hope a patch can be made.
I also tested another plug I wasn't sure would work and found that HakuenStudio's Character Manager (where you can make an event shrink or grow) doesn't result in a larger or smaller shadow.