So did Silktone's Toggle-Input-to-None-and-Back workaround solve your problem?
I'm finding that even with Always Echo
enabled (i.e. starting with Input = Omni on a new track) and then setting the input to <Controller> - Omni or <Controller> - <MatchingChannel>, I only get the false confidence recording clip outline; no notes show in the clip while recording, and nothing is actually recorded or echoed to the synth. I don't have to toggle the Input to prevent actual recording.
I don't have multiple MIDI interfaces connected to my DAW at the moment, but I have in the past so there are entries for them in TTSSEQ.INI. Maybe that's all it takes to make the problem go away...?
I'll try to look into this more later.