ESP32 MDNS.queryService returns only one instance per service.

[JesFo]

I've tried getting a list of service instances with this code:
numServices = MDNS.queryService("_revpipyload", "tcp");
When using a service browser, I see both of my instances like so:

Both the MQTT and NodeRED instances are visible.
However, no matter what I do, the line above always only returns "1". Also, whenever i try to look up the entries with MDNS.hostname(X). Only index 0 returns a value.
I've tried this with different ESP32 devkits, Including but not limited to: wESP32, Olimex POE ISO, ESP32_CAM, ESP32 Devkit V4, and so on...
Each one so far has the same problem.

I've also tried changing the service names and protocols using other Avahi/Bonjour capable devices, but I get the same results.
I use the ESP32 Arduino core version 2.0.8 with PlatformIO.

And my code's setup looks like this:

void setup()
{
  Serial.begin(115200); 
  ETH.begin(0, -1, 16, 17, ETH_PHY_RTL8201);
  MDNS.begin("ControlUnit");
  MDNS.addService("revpipyload", "tcp", 123);
  numServices = MDNS.queryService("_revpipyload", "tcp");
  Serial.print("Number of services found: ");
  Serial.println(numServices);
  for (int i = 0; i < numServices; i=i+1) {

    Serial.println("---------------");
      
    Serial.print("Hostname: ");
    Serial.println(MDNS.hostname(i));

    Serial.print("IP address: ");
    Serial.println(MDNS.IP(i));

    Serial.print("Port: ");
    Serial.println(MDNS.port(i));

    Serial.println("---------------");
  }
}

Even if i try manually to print out MDNS.hostname(1) I get nothing.
Is this considered a bug?

[mcspr]

-> https://github.com/espressif/arduino-esp32/issues, this is ESP8266 repo