Case cannot be created if there are pre-assigned users

$Fatal Error Details = array:3 [ "message" => "Value is not a valid entity." "code" => null "exception" => InvalidArgumentException {#1179 #message: "Value is not a valid entity." #code: 0 #file: "<snip>/web/core/lib/Drupal/Core/Entity/Plugin/DataType/EntityReference.php" #line: 106 trace: { <snip>/web/core/lib/Drupal/Core/Entity/Plugin/DataType/EntityReference.php:106 { Drupal\Core\Entity\Plugin\DataType\EntityReference->setValue($value, $notify = true) › elseif (!is_scalar($value) || $this->getTargetDefinition()->getEntityTypeId() === NULL) { › throw new \InvalidArgumentException('Value is not a valid entity.'); › } } <snip>/web/core/lib/Drupal/Core/Field/FieldItemBase.php:125 { …} <snip>/web/core/lib/Drupal/Core/TypedData/Plugin/DataType/Map.php:131 { …} <snip>/web/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php:179 { …} <snip>/web/core/lib/Drupal/Core/TypedData/TypedDataManager.php:208 { …} <snip>/web/core/lib/Drupal/Core/Field/FieldTypePluginManager.php:82 { …} <snip>/web/core/lib/Drupal/Core/Field/FieldItemList.php:41 { …} <snip>/web/core/lib/Drupal/Core/TypedData/Plugin/DataType/ItemList.php:69 { …} <snip>/web/core/lib/Drupal/Core/Field/FieldItemList.php:107 { …} <snip>/web/core/lib/Drupal/Core/Entity/ContentEntityBase.php:1088 { …} <snip>/web/core/lib/Drupal/Core/Entity/ContentEntityStorageBase.php:271 { …} <snip>/web/modules/contrib/civicrm_entity/src/CiviEntityStorage.php:388 { …} <snip>/web/core/lib/Drupal/Core/Entity/ContentEntityStorageBase.php:129 { …} <snip>/web/core/lib/Drupal/Core/Entity/ContentEntityStorageBase.php:94 { …} <snip>/web/modules/contrib/civicrm_entity/civicrm_entity.module:368 { …} <snip>/vendor/civicrm/civicrm-core/CRM/Utils/Hook.php:283 { …} <snip>/vendor/civicrm/civicrm-core/CRM/Utils/Hook/DrupalBase.php:73 { …} <snip>/vendor/civicrm/civicrm-core/Civi/Core/CiviEventDispatcher.php:318 { …} <snip>/vendor/symfony/event-dispatcher/EventDispatcher.php:251 { …} <snip>/vendor/symfony/event-dispatcher/EventDispatcher.php:73 { …} <snip>/vendor/civicrm/civicrm-core/Civi/Core/CiviEventDispatcher.php:260 { …} <snip>/vendor/civicrm/civicrm-core/CRM/Utils/Hook.php:348 { …} <snip>/vendor/civicrm/civicrm-core/CRM/Activity/BAO/Activity.php:306 { …} <snip>/vendor/civicrm/civicrm-core/CRM/Case/XMLProcessor/Process.php:544 { …} <snip>/vendor/civicrm/civicrm-core/CRM/Case/XMLProcessor/Process.php:148 { …} <snip>/vendor/civicrm/civicrm-core/CRM/Case/XMLProcessor/Process.php:121 { …} <snip>/vendor/civicrm/civicrm-core/CRM/Case/XMLProcessor/Process.php:47 { …} <snip>/vendor/civicrm/civicrm-core/CRM/Case/Form/Activity/OpenCase.php:321 { …} <snip>/vendor/civicrm/civicrm-core/CRM/Case/Form/Case.php:400 { …} <snip>/vendor/civicrm/civicrm-core/CRM/Case/Form/Case.php:435 { …}

Comments & Activities

Issue created by @jonhalle
Comment about 1 year ago →
🇬🇧United Kingdom jonhalle
Comment about 1 year ago →
🇺🇸United States markusa
It must be that the case is first saved without an assignee, or if assignee is assigned in a hook_civicrm_pre() implementation it is happening after CiviCRM's hook implementation is running.

CiviCRM validates based on what the api action.validate gives it.

It maybe possible to goto: /admin/structure/civicrm-entity/settings
"Advanced Settings"
Check "Disable pre/post hooks"

See if it works without error.

Let me know if that allows it to work.
Comment about 1 year ago →
🇬🇧United Kingdom jonhalle
Thank you @markusa. Yes that does allow it to work - though clearly it's a diagnostic step not a workaround. Does that give any more clues? Happy to do some more poking but I am not really clear on what structures in Drupal this hook is seeking to update.

One additional thing I have noticed is that the error does not stop the case being created, albeit with only the activities up to the one with the pre-assigned user being created.