Arduino Cloud not receive al data

Greetings,
My name is Stefano and I'm at my first experience with Arduino Cloud.
I am an electronics enthusiast
I'm doing the first tests with Arduino cloud.
I created another script to send data to the dashboard but noticed something wasn't working. So I created (this trivial example) with fixed variables and send them to the cloud every 10 seconds. However, it happens that the cloud receives only the first piece of data and not the others. Only after a few hours is some data updated, but not all of the data sent. Why are not all the collected data reported and why in the data export are not all those sent but only some?
changing the const long interval time from a few seconds to 15 minutes, the result does not change
Below is the test code
I don't share the file thingProperties.h because it is the one created automatically by the platform
thanks in advance

#include "thingProperties.h"

unsigned long previousMillis = 0;
const long interval = 10000;

void setup() {
  // Initialize serial and wait for port to open:
  Serial.begin(9600);
  // This delay gives the chance to wait for a Serial Monitor without blocking if none is found
  delay(1500); 

  // Defined in thingProperties.h
  initProperties();

  // Connect to Arduino IoT Cloud
  ArduinoCloud.begin(ArduinoIoTPreferredConnection);
  
  /*
     The following function allows you to obtain more information
     related to the state of network and IoT Cloud connection and errors
     the higher number the more granular information you’ll get.
     The default is 0 (only errors).
     Maximum is 4
 */
  setDebugMessageLevel(2);
  ArduinoCloud.printDebugInfo();
}

void loop() {
  unsigned long currentMillis = millis();
  ArduinoCloud.update();
if (currentMillis - previousMillis >= interval) {
     previousMillis = currentMillis;


  acqua1 = 50;
  acqua2 = 60;
  acqua3 = 30;
  Serial.println(acqua1);
   Serial.println(acqua2);
   Serial.println(acqua3);
  
}}


Provide all the code in code tags

I found the problem... if the variable stays the same and doesn't change, it isn't displayed or sent to the cloud.
I did a test where the variable was incremented by 1 every send and the dashboard works correctly.
Is there a way to receive data on the cloud even if the variable always remains the same?
Thank you

Hi @stefaduino.

Yes, configure the "update policy" of your Variables as "periodically":

  1. If you are not already, log in to your Arduino account:
    https://login.arduino.cc/login
  2. Click the following link to open the list of your Arduino Cloud Things in the web browser:
    https://app.arduino.cc/things
  3. Click the name of the Thing.
    The "Setup" page for the Thing will open.
  4. Hover the mouse pointer over acqua1 in the list of Variables.
    A icon will appear on the right side of the Variable's entry.
  5. Click the icon.
    A menu will open.
  6. Select "Edit" from the menu.
    The "Edit variable" dialog will open.
  7. Select the radio button for "Periodically" under the "Variable Update Policy" section of the dialog.
  8. Configure the update period length in the "Every" field of the dialog.
  9. Click the "SAVE" button in the dialog.
    The dialog will close.
  10. Repeat the process for the other Variables.

Hi, it works perfectly, thanks...
I can implement everything with my initial project.

Thank you

You are welcome. I'm glad if I was able to be of assistance.

Regards, Per