MQTT still timing out 0.100.3

Installation Home Assistant OS
1

MQTT is still timing out and dropping my room sensors after updating to 0.100.3.

error log:
1571842935: New client connected from 192.168.1.57 as SB-2 (p2, c1, k15, u’testMQTT’).
1571843030: Client SB-2 has exceeded timeout, disconnecting.

My ESP32 firmware hasn’t change for over a year.
This issue has be happening for at least the last 4 version updates.

Here is my MQTT re-connect Arduino code:

// MQTT re-connect function
void reconnect() {
  // Loop until we're reconnected
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    // Attempt to connect
    if (client.connect("SB-2", "user", "password")) {
      Serial.println("connected");
      /* subscribe topic with default QoS 0*/
      client.subscribe("mqtt_client");  /* 1=on, 0=off */
      // Once connected, publish an announcement...
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      // Wait 5 seconds before retrying
      delay(5000);
    }
  }
}