FabFilter User Forum
Simplon bug report (MIDI Learn)
VST3/64bit version of Simplon can't learn MIDI. It doesn't react to a MIDI controller in MIDI learn mode.
But "One" learned MIDI from same controller.
Cubase 5.52 x64, Windows 7, Athlon II X4 620, M3A78 PRO, 4GB RAM
Jeong Dae Yun — Dec 7, 2010
You need to manually route MIDI events to effect plugins in Cubase: on a MIDI track, set the output to the instance of Simplon you want to control.
Cheers,