diff --git a/src/phpDocumentor/Reflection/NodeVisitor/ElementNameResolver.php b/src/phpDocumentor/Reflection/NodeVisitor/ElementNameResolver.php
index 2139d709..fe08f74d 100644
--- a/src/phpDocumentor/Reflection/NodeVisitor/ElementNameResolver.php
+++ b/src/phpDocumentor/Reflection/NodeVisitor/ElementNameResolver.php
@@ -13,6 +13,7 @@
 
 namespace phpDocumentor\Reflection\NodeVisitor;
 
+use InvalidArgumentException;
 use Override;
 use phpDocumentor\Reflection\Fqsen;
 use PhpParser\Node;
@@ -118,14 +119,13 @@ public function enterNode(Node $node): int|null
             case Function_::class:
                 $this->parts->push($node->name . '()');
                 $this->setFqsen($node);
-
-                return NodeTraverser::DONT_TRAVERSE_CHILDREN;
+                break;
 
             case ClassMethod::class:
                 $this->parts->push('::' . $node->name . '()');
                 $this->setFqsen($node);
 
-                return NodeTraverser::DONT_TRAVERSE_CHILDREN;
+                break;
 
             case ClassConst::class:
                 $this->parts->push('::');
@@ -172,7 +172,12 @@ private function buildName(): string
 
     private function setFqsen(Node $node): void
     {
-        $fqsen = new Fqsen($this->buildName());
-        $node->setAttribute('fqsen', $fqsen);
+        try {
+            $fqsen = new Fqsen($this->buildName());
+            $node->setAttribute('fqsen', $fqsen);
+        } catch (InvalidArgumentException) {
+            // If the name is invalid, we do not set the fqsen attribute. This allows us to continue processing
+            // the rest of the nodes without interruption.
+        }
     }
 }
diff --git a/src/phpDocumentor/Reflection/Php/Expression/ExpressionPrinter.php b/src/phpDocumentor/Reflection/Php/Expression/ExpressionPrinter.php
index 5e9162ec..a308a93c 100644
--- a/src/phpDocumentor/Reflection/Php/Expression/ExpressionPrinter.php
+++ b/src/phpDocumentor/Reflection/Php/Expression/ExpressionPrinter.php
@@ -104,6 +104,13 @@ protected function pExpr_ClassConstFetch(Expr\ClassConstFetch $node): string
         return $placeholder;
     }
 
+//    protected function pExpr_ConstFetch(Expr\ConstFetch $node): string
+//    {
+//        $className = parent::pName($node->name);
+//        $className = $this->typeResolver->resolve($className, $this->context);
+//        return 'trst';
+//    }
+
     /** @return array<string, Fqsen|Type> */
     public function getParts(): array
     {
diff --git a/tests/integration/ProjectCreationTest.php b/tests/integration/ProjectCreationTest.php
index cb36a929..cbb56455 100644
--- a/tests/integration/ProjectCreationTest.php
+++ b/tests/integration/ProjectCreationTest.php
@@ -275,12 +275,22 @@ public function testFunctionContantDefaultIsResolved() : void
 
         self::assertEquals(
             new Expression(
-                '{{ PHPDOCa8cfde6331bd59eb2ac96f8911c4b666 }}',
+                '{{ PHPDOC0de51a5acf75f22ec3c4a9568981d703 }}',
                 [
-                    '{{ PHPDOCa8cfde6331bd59eb2ac96f8911c4b666 }}' => new Object_(),
+                    '{{ PHPDOC0de51a5acf75f22ec3c4a9568981d703 }}' => new Fqsen('\OBJECT'),
                 ],
             ),
             $functions['\bar()']->getArguments()[0]->getDefault()
         );
+
+        self::assertEquals(
+            new Expression(
+                '{{ PHPDOC342481e8fedbe60c956b14c1f80f5274 }}',
+                [
+                    '{{ PHPDOC342481e8fedbe60c956b14c1f80f5274 }}' => new Fqsen('\Acme\FOO'),
+                ],
+            ),
+            $functions['\bar2()']->getArguments()[0]->getDefault()
+        );
     }
 }
diff --git a/tests/integration/data/GlobalFiles/function_constant_default.php b/tests/integration/data/GlobalFiles/function_constant_default.php
index 685a0d03..b2fbd850 100644
--- a/tests/integration/data/GlobalFiles/function_constant_default.php
+++ b/tests/integration/data/GlobalFiles/function_constant_default.php
@@ -2,6 +2,10 @@
 
 use Acme\Plugin;
 
+use const Acme\FOO;
+
 function foo( $output = Plugin::class ) {}
 
 function bar( $output = OBJECT ) {}
+
+function bar2( $output = FOO ) {}