diff --git a/license_sh/commands/run_license_sh.py b/license_sh/commands/run_license_sh.py
index bbd5f35..8d75480 100644
--- a/license_sh/commands/run_license_sh.py
+++ b/license_sh/commands/run_license_sh.py
@@ -68,7 +68,11 @@ def run_license_sh(arguments):
         dep_tree, license_map = runner.check()
         ignored_packages = ignored_packages_map[ProjectType.YARN.value]
 
-    filtered_dep_tree, licenses_not_found = get_dependency_tree_with_licenses(
+    (
+        filtered_dep_tree,
+        licenses_not_found,
+        has_issues,
+    ) = get_dependency_tree_with_licenses(
         dep_tree, whitelist, ignored_packages=ignored_packages, get_full_tree=tree
     )
 
@@ -98,5 +102,4 @@ def run_license_sh(arguments):
                     get_full_tree=tree,
                 )
 
-    has_issues: bool = filtered_dep_tree.height > 0
     exit(1 if has_issues else 0)
diff --git a/license_sh/helpers.py b/license_sh/helpers.py
index 686f980..56b2849 100644
--- a/license_sh/helpers.py
+++ b/license_sh/helpers.py
@@ -1,6 +1,8 @@
 from typing import Tuple, Set, List
 
 from anytree import PreOrderIter, LevelOrderIter, AnyNode
+from anytree.exporter import DictExporter
+from anytree.importer import DictImporter
 from license_expression import Licensing
 
 try:
@@ -180,13 +182,14 @@ def filter_dep_tree(tree: AnyNode) -> AnyNode:
     Returns:
         AnyNode -- Filtered tree
     """
-    for node in LevelOrderIter(tree):
+    treeCopy = DictImporter().import_(DictExporter().export(tree))
+    for node in LevelOrderIter(treeCopy):
         node.children = filter(
             lambda subnode: subnode.subtree_problem or subnode.license_problem,
             node.children,
         )
 
-    return tree
+    return treeCopy
 
 
 def get_dependency_tree_with_licenses(
@@ -206,7 +209,7 @@ def get_dependency_tree_with_licenses(
     annotated_dep_tree, unknown_licenses = annotate_dep_tree(
         dep_tree, whitelist=whitelist, ignored_packages=ignored_packages
     )
-    filtered_dependency_tree = (
-        annotated_dep_tree if get_full_tree else filter_dep_tree(annotated_dep_tree)
-    )
-    return filtered_dependency_tree, unknown_licenses
+    filtered_dependency_tree = filter_dep_tree(annotated_dep_tree)
+    has_issues = filtered_dependency_tree.height > 0
+    dependency_tree = annotated_dep_tree if get_full_tree else filtered_dependency_tree
+    return dependency_tree, unknown_licenses, has_issues
diff --git a/license_sh/version.py b/license_sh/version.py
index b19b12e..f871089 100644
--- a/license_sh/version.py
+++ b/license_sh/version.py
@@ -1 +1 @@
-__version__ = "1.0.14"
+__version__ = "1.0.15"