Mtracking.gif not appened in email sent by campaing or segment

Product Support
1

Your software
My Mautic version is: 2.15.1 and 2.16.2
My PHP version is: 7.1.30

Your problem
My problem is:

mtracking.gif IMG not appened in email sent by campaing or segment , just with send email to one contact by time.

I already tested change SMTP and confirmed that “bug”.

When sending via campaing or segment the img not goes togheter.

These errors are showing in the log:

[2020-05-01 01:28:42] mautic.NOTICE: PHP Notice - Undefined index: ct - in file /opt/bitnami/apps/mautic/htdocs/app/bundles/PageBundle/Controller/PublicController.php - at line 452 {“redirectId”:“57b765480521b9bae686580a7”,“logger”:"[object] (Symfony\Bridge\Monolog\Logger: {})",“redirectModel”:"[object] (Mautic\PageBundle\Model\RedirectModel: {})",“redirect”:"[object] (Mautic\PageBundle\Entity\Redirect: Mautic\PageBundle\Entity\Redirect with ID #129)",

Steps I have tried to fix the problem:

  1. I already tried, change SMTP.
  2. Fresh installation
  3. Instalattion with fresh DB
  4. Update scheme database
  5. Clear caches alot
  6. Disable all plugins and stuffs
  7. Checked emails with Tab Incognito and by source code of email not using developer tools
  8. Activate and deactivate DKIM, SPF and stuffs
  9. Pulled the git version of Mautic and just work locally

My installation is via Bitnami AMI to AWS EC2.

Some ideias? My php version maybe? So weird code bug? of “ct” variable there?