Control Surface/Script Install bugs

Running on Windows + iPad Pro
Installed the scripts to the ProgramData install folder, as well as my User Folder (it was working earlier on an internal drive but had to move externally)
Despite reinstalling both Ableton and the Server, restarting the ipad app:
-It appears in the Preferences:MIDI:Control Surface drodown
-Input column boxes are all fully greyed out - no option to select anything here - I believe this is the issue

Help would be appreciated