MIDI_DIN2USB example does not work (incorrect second and third byte)

[phjanderson]

The MIDI_DIN2USB doesn't seem to work properly.

Versions used:

• USB-MIDI 1.1.2
• MIDI Library 5.0.2
• Arduino IDE 2.3.2
• Arduino Leonardo

Setup (tested working using another library):

• MIDI keyboard connected to the DIN input
• PC connected through USB running a MIDI monitor

If I press a key on the MIDI keyboard, I see a message coming in in the MIDI monitor on the PC. Only the first byte is correct however:

90 00 00
80 00 00

Adding some Serial.println() statements in the onSerialMessage() method confirms that message contains the correct channel, data1 and data2. The length attribute is 0 however. Forcing it to 3 before sending it out to MIDICoreUSB.send() results in correct MIDI note on/off messages. This won't work for messages with different lengths of course.