setTX - setRX causes board COM to disappear

[dBarmpxkos]

I am probing rp2040 GP4 for output using the sketch below and I am running in an issue.

#include <MIDI.h>

MIDI_CREATE_INSTANCE(HardwareSerial, Serial2, TRS_MIDI);

void setup() {
  Serial2.setTX(4);
  Serial2.setRX(5);
  TRS_MIDI.begin(MIDI_CHANNEL_OMNI);
  Serial2.begin(31250);
}

void loop() {
  TRS_MIDI.sendNoteOn(40, 128, 0);
  delay(500);
}

After I flash the device with this code, the COM port stops appearing and the only way to reprogram it is by putting in into bootloader mode so it can appear as UF2 board again! The sketch works as intended, I can validate it with the oscilloscope.