diff --git a/system/Test/FeatureTestCase.php b/system/Test/FeatureTestCase.php
index 9b393257c027..dc53c42c1e4f 100644
--- a/system/Test/FeatureTestCase.php
+++ b/system/Test/FeatureTestCase.php
@@ -151,6 +151,15 @@ public function skipEvents()
 	 */
 	public function call(string $method, string $path, array $params = null)
 	{
+		// Clean up any open output buffers
+		// not relevant to unit testing
+		// @codeCoverageIgnoreStart
+		if (\ob_get_level() > 0 && $this->clean)
+		{
+			\ob_end_clean();
+		}
+		// @codeCoverageIgnoreEnd
+
 		// Simulate having a blank session
 		$_SESSION                  = [];
 		$_SERVER['REQUEST_METHOD'] = $method;
@@ -178,16 +187,6 @@ public function call(string $method, string $path, array $params = null)
 			$response->setBody($output);
 		}
 
-		// Clean up any open output buffers
-		// not relevant to unit testing
-		// @codeCoverageIgnoreStart
-
-		if (ob_get_level() > 0 && $this->clean)
-		{
-			ob_end_clean();
-		}
-		// @codeCoverageIgnoreEnd
-
 		// Reset directory if it has been set
 		Services::router()->setDirectory(null);
 
diff --git a/tests/system/Test/FeatureTestCaseTest.php b/tests/system/Test/FeatureTestCaseTest.php
index b89422760085..e32f738b2c46 100644
--- a/tests/system/Test/FeatureTestCaseTest.php
+++ b/tests/system/Test/FeatureTestCaseTest.php
@@ -5,9 +5,7 @@
 use CodeIgniter\Test\FeatureResponse;
 
 /**
- * @group                       DatabaseLive
- * @runTestsInSeparateProcesses
- * @preserveGlobalState         disabled
+ * @group DatabaseLive
  */
 class FeatureTestCaseTest extends FeatureTestCase
 {
@@ -198,10 +196,6 @@ public function testEchoes()
 	public function testCallZeroAsPathGot404()
 	{
 		$this->expectException(PageNotFoundException::class);
-		while (\ob_get_level() > 0)
-		{
-			\ob_end_flush();
-		}
 		$this->get('0');
 	}
 
@@ -247,11 +241,6 @@ public function testOpenCliRoutesFromHttpGot404($from, $to, $httpGet)
 				$to,
 			],
 		]);
-
-		while (\ob_get_level() > 0)
-		{
-			\ob_end_flush();
-		}
 		$this->get($httpGet);
 	}
 }