Some info re: sending out MIDI system exclusive messages from a VST3

[kunz]

I was able to reproduce the problem in Cubase 12. I have created a bug report about this here:

JUCE VST3 Sysex MIDI Bug

JUCE VST3 Sysex output does not work in 3rd party hosts. JUCE strips out the header and footer Sysex bytes. Because of this, Sysex output from VST3 plugin does not work in most hosts including Cubase 12 and Reaper. So far the only reported host where it works is the JUCE host itself. Reproduce the problem with Steinberg Cubase 12: Disabled the SySex MIDI Filter in the Cubase settings Create an Instrument Channel with the VST3 that outputs Sysex from the process block Create a MIDI Channel in …