Elysia Niveau Filter (VST3 - 32bit) does not respond when trying to map its controls to an FX Chain, button and knobs will not show up. Other plugins such as Waves NLS (VST3 - 32bit), UAD Ampex (32bit), the control will show up in the FX Chain, but often it will map to the wrong parameter (you set it to control gain, for example, and it controls something else).