Building a simple test-project (no code changes, same “Hello World!” plugin that get’s created by default), the .vst3 plugin that gets build (64-bit, Windows, using the latest 3.6.7 VST3 SDK) doesn’t show up in Cubase 9 at all. Even a manual re-scan practically ignores it.
Is there some setting (plugin-category?) or something that needs to be adjusted?
I’m planning on building a stereo-out only VST-synth (so needs MIDI, no inputs, one bus (stereo) output)