Red Giant plugins have a history of install problems. They don’t always play well, especially if you’re not installing to the C:/ drive. Here’s an FAQ from RG:
https://support.redgiant.com/hc/en-us/articles/219486068
When I switched to a new workstation, and had to reinstall the RG suites, I had random problems – some of the plugins installed correctly and some didn’t. I had to go to the C:/ drive, and move some of the plugin files to the drive I had Adobe After Effects installed on. It can be a pain in the neck!
You may need to move the plugins from the Common folder to the After Effects/Plugins folder (or whatever your particular machine is using. Try one of them, see if it works, then move all of them. Good luck!
Joe Bourke
Owner/Creative Director
Bourke Media
http://www.bourkemedia.com