If you can't see your UADx or Fabfilter plug-ins in Console 1, please try this:
Quit the On-Screen Display from the systems tray/menu bar. Re-start Softube Central and reinstall the Console 1 software to the latest version (2.6.1).
Also, make sure to download and install VST3 versions of UADx and Fabfilter. They should be directly in the VST3 folder, not sorted by vendor. Other formats (AU/VST2.4./AAX) will not work.