SigCJDemo DF19.0 Codejock 17.3 works:
Click image for larger version. 

Name:	DF190-Codejock173.jpg 
Views:	91 
Size:	104.8 KB 
ID:	13039

I also noticed that the wrapper AppSrc for CJ 18.4 is missing a file called SigCjC_ItemAlign.pkg.
It exist in the other wrappers so you could just import it from 18.3 wrapper. But don´t know if that has to do with this.