Apps Script OnChange not firing when spreadsheet is edited from elsewhere

Question

So I have a very simple Apps script code that has OnChange trigger, and it fires whenever I edit the spreadsheet, then sends a post request to another server. It works perfectly when I add or remove a row from the spreadsheet, but if the spreadsheet is edited from an API or Appsheet for example, the trigger doesn't get fired, and so does the post request. Any suggestions?

function setUpTrigger() {

ScriptApp.newTrigger('logChanges').forSpreadsheet('ID HERE').onChange().create();

}

function logChanges(e) {
const sheet=SpreadsheetApp.getActiveSpreadsheet().getSheetByName('sheetname')

    if (e.changeType == "INSERT_ROW") {
      var range = sheet.getActiveRange();
      var row = range.getLastRow();

      Utilities.sleep(3000)

      let obj = sheet.getRange(row, 1, 1, 3).getValues().toString().split(",") // name, email, number

      let data = {
        'name': obj[0],
        'email': obj[1],
        'number': obj[2]
      };

      const params = {
        'method': 'POST',
        'contentType': 'applic`your text`ation/json',
        'payload': JSON.stringify(data)
      }

      let res = UrlFetchApp.fetch('url', params)

    }

}

I don't really know why it doesn't get fired when I'm not the one who directly changes it. I saw some questions related to Zapier and IFTTT, and the answers suggested changing the trigger from OnEdit to OnChange, but I already have it OnChange and it's not working.