diff --git a/CHANGELOG.md b/CHANGELOG.md
index ec81e259a..55ffb0bea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,8 @@
     * Set `cache.clear_images_by_default` to `false` by default
 1. [](#bugfix)
     * Improve Plugin and Theme initialization to fix PHP8 bug [#3368](https://github.com/getgrav/grav/issues/3368)
-    * Fixed `pathinfo()` twig filter in PHP 7
+    * Fixed `pathinfo()` twig filter in PHP7
+    * Fixed the first visible child page getting ordering number `999999.` [#3365](https://github.com/getgrav/grav/issues/3365)
 
 # v1.7.15
 ## 05/19/2021
diff --git a/system/src/Grav/Common/Flex/Types/Pages/PageObject.php b/system/src/Grav/Common/Flex/Types/Pages/PageObject.php
index 933a00a32..b1ec6bfa3 100644
--- a/system/src/Grav/Common/Flex/Types/Pages/PageObject.php
+++ b/system/src/Grav/Common/Flex/Types/Pages/PageObject.php
@@ -367,7 +367,7 @@ class PageObject extends FlexPageObject
         $filesystem = Filesystem::getInstance(false);
         $oldParentKey = ltrim($filesystem->dirname("/{$storageKey}"), '/');
         $newParentKey = $this->getProperty('parent_key');
-        $isMoved = $oldParentKey !== $newParentKey;
+        $isMoved = $this->exists() && $oldParentKey !== $newParentKey;
         $order = !$isMoved ? $this->order() : false;
         if ($order !== false) {
             $order = (int)$order;
@@ -385,10 +385,12 @@ class PageObject extends FlexPageObject
         // Handle special case where ordering isn't given.
         if ($ordering === []) {
             if ($order >= 999999) {
-                // Set ordering to point to be the last item.
+                // Set ordering to point to be the last item, ignoring the object itself.
                 $order = 0;
                 foreach ($siblings as $sibling) {
-                    $order = max($order, (int)$sibling->order());
+                    if ($sibling->getKey() !== $this->getKey()) {
+                        $order = max($order, (int)$sibling->order());
+                    }
                 }
                 $this->order($order + 1);
             }