diff --git a/workflow/engine/classes/class.processes.php b/workflow/engine/classes/class.processes.php
index 7b2f6fc00..1c2aec660 100755
--- a/workflow/engine/classes/class.processes.php
+++ b/workflow/engine/classes/class.processes.php
@@ -3731,6 +3731,22 @@ class Processes
         return;
     }
 
+    /**
+     * Get Task User Rows from an array of data
+     *
+     * @param array $aTaskUser
+     * @return array $aStepTrigger
+     */
+    public function removeTaskUserRows($tasks)
+    {
+        foreach ($tasks as $task) {
+            $oCriteria = new \Criteria('workflow');
+            $oCriteria->add(\TaskUserPeer::TAS_UID, $task['TAS_UID']);
+            \TaskUserPeer::doDelete($oCriteria);
+        }
+        return;
+    }
+
     /**
      * Get Task User Rows from an array of data
      *
diff --git a/workflow/engine/src/ProcessMaker/BusinessModel/Migrator/AssignmentRulesMigrator.php b/workflow/engine/src/ProcessMaker/BusinessModel/Migrator/AssignmentRulesMigrator.php
index e91768633..a9ee5a46e 100644
--- a/workflow/engine/src/ProcessMaker/BusinessModel/Migrator/AssignmentRulesMigrator.php
+++ b/workflow/engine/src/ProcessMaker/BusinessModel/Migrator/AssignmentRulesMigrator.php
@@ -40,6 +40,7 @@ class AssignmentRulesMigrator implements Importable, Exportable
             if ($replace) {
                 $this->processes->createTaskRows($data['tasks']);
                 $this->processes->addNewGroupRow($data['groupwfs']);
+                $this->processes->removeTaskUserRows($data['tasks']);
                 $this->processes->createTaskUserRows($data['taskusers']);
             } else {
                 $this->processes->addNewTaskRows($data['tasks']);
diff --git a/workflow/engine/src/ProcessMaker/BusinessModel/Migrator/GranularImporter.php b/workflow/engine/src/ProcessMaker/BusinessModel/Migrator/GranularImporter.php
index 814b0a99a..954cff759 100644
--- a/workflow/engine/src/ProcessMaker/BusinessModel/Migrator/GranularImporter.php
+++ b/workflow/engine/src/ProcessMaker/BusinessModel/Migrator/GranularImporter.php
@@ -121,9 +121,9 @@ class GranularImporter
                 break;
             case 'REPORTTABLES':
                 $objectList['REPORTTABLES']['reportTablesDefinition'] = isset($data['tables']['workflow']['reportTablesDefinition']) ?
-                    $data['tables']['workflow']['reportTablesDefinition'] : '';
+                    $data['tables']['workflow']['reportTablesDefinition'] : [];
                 $objectList['REPORTTABLES']['reportTablesFields'] = isset($data['tables']['workflow']['reportTablesFields']) ?
-                    $data['tables']['workflow']['reportTablesFields'] : '';
+                    $data['tables']['workflow']['reportTablesFields'] : [];
                 break;
             default:
                 break;
diff --git a/workflow/engine/src/ProcessMaker/BusinessModel/Migrator/ReportTablesMigrator.php b/workflow/engine/src/ProcessMaker/BusinessModel/Migrator/ReportTablesMigrator.php
index 68954d28a..1901222af 100644
--- a/workflow/engine/src/ProcessMaker/BusinessModel/Migrator/ReportTablesMigrator.php
+++ b/workflow/engine/src/ProcessMaker/BusinessModel/Migrator/ReportTablesMigrator.php
@@ -30,7 +30,6 @@ class ReportTablesMigrator implements Importable, Exportable
     {
         try {
             $reportTable = new \ProcessMaker\BusinessModel\ReportTable();
-
             $arrayTableSchema = [];
             $arrayTablesToExclude = [];
             $processUid = '';