When I try to use a snippet on the command line in ChatGPT, nothing happens.
Hi, and welcome to the forum! 
I've tested it in ChatGPT and it seems to be working fine for me. Can you share a screenshot of where you are trying to insert it in ChatGPT? That may help us debug the issue.
Also, please consider trying out AI Blaze; it's a companion app to Text Blaze focused on generative AI.