I’m not an expert on this but here is a quick thought: check to see you have an instrument assigned to the MIDI THROUGH channel.

Perhaps the green SEQ icon will help you sort out what goes to what.


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.