Update _view per-render as it's an instance value.

src/View/TwigView.php

@@ -113,8 +113,6 @@ public function initialize(): void
                 $this->initializeProfiler();
             }
         }
-
-        static::$twig->addGlobal('_view', $this);
     }
 
     /**
@@ -171,6 +169,8 @@ protected function createEnvironment(): Environment
         }
 
         $env = new Environment($this->createLoader(), $config);
+        // Must add before any templates are rendered so can be updated in _render().
+        $env->addGlobal('_view', $this);
 
         return $env;
     }
@@ -272,6 +272,9 @@ protected function initializeProfiler(): void
      */
     protected function _render(string $templateFile, array $data = []): string
     {
+        // Set _view for each render because Twig Environment is shared between views.
+        $this->getTwig()->addGlobal('_view', $this);
+
         $data = array_merge(
             empty($data) ? $this->viewVars : $data,
             iterator_to_array($this->helpers()->getIterator())