diff --git a/AutomatedTesting/Gem/PythonTests/physics/TestSuite_Sandbox.py b/AutomatedTesting/Gem/PythonTests/physics/TestSuite_Sandbox.py
index e2defae28d..255016ddd6 100755
--- a/AutomatedTesting/Gem/PythonTests/physics/TestSuite_Sandbox.py
+++ b/AutomatedTesting/Gem/PythonTests/physics/TestSuite_Sandbox.py
@@ -45,6 +45,8 @@ class TestAutomation(TestAutomationBase):
         self._run_test(request, workspace, editor, test_module)
 
     ## Seems to be flaky, need to investigate
+    @pytest.mark.xfail(
+        reason="Editor crashes and errors about files accessed by multiple processes appear in the log.")
     @revert_physics_config
     def test_C15425929_Undo_Redo(self, request, workspace, editor, launcher_platform):
         from . import C15425929_Undo_Redo as test_module