arguments to change color, node size and labels size not working

In cnetplot(), I am trying to use the arguments cex_category and cex_gene to change node size, cex_label_category and cex_label_gene to change labels size, and color_category and color_gene to change colors. However, none of these arguments seem to work. I do get the default cnet plot, and other arguments, such as layout or circular do work. Anyone has experienced and been able to solve this? Thanks!