I'm running Studio One 3 Pro (on a Mac) and recently starting running into issues with 3rd party plug-ins.
I got & installed Wavesfactory Cassette and a few other effect plug-ins, they all show up in Studio One on my list of effects to select for a given channel. However, if I click to add/open these plug-ins nothing happens, their name doesn't appear on the channel strip.
Not having any issues with Studio One's factory plug-ins and they open as normal. The 3rd party VSTs/AUs DO work in other DAWs (Ableton 9/Audacity) without any issues. Any ideas as to what's going on?