Hi!
MidiMessage().isActiveSense() returns false although the documentation says that the default constructor creates an active sense message
https://docs.juce.com/master/classMidiMessage.html#ad6e2e3e43fa78ef012bf87b5d7392e8a
Looks like the documentation is wrong there. The next line says it creates an empty sysex message, and if you look at the constructor code, that’s exactly what it does: setting the data to 0xf0 (sysex), not 0xfe (active-sense).