When trying to add a new CiviCRM Contact of type Individual through a webform to a existing Household, the required Relationship is not created, although it is set up on the CiviCRM setting of the webform.
The existing Household is selected using the "Existing Contact" field of the civicrm webform.
When trying for the second time, the relationship between the Household and the Individual is correctly added.
Any idea what might be happening? I'm working with Drupal 7.78 and CiviCRM 5.34.
Thanks in advance.