Well figured out my own issue. Padshop2 is installed as a VST3 in a default folder. if you turn on the “Use VST3 Plug-In System Folders” option in Preferences → Plugins it will show up.
All of my other plugsin, Serum, Kilohearts suite, Shaperbox, Harmor, Edison who up as “VST” and are in a custom plugins folder.