Prevent unsafe calls to AssetProcessor

Signed-off-by: sweeneys <sweeneys@amazon.com>

AutomatedTesting/Gem/PythonTests/automatedtesting_shared/base.py

@@ -49,9 +49,11 @@ class TestAutomationBase:
             time_info_str += f"{testcase_name}: (Full:{t} sec, Editor:{editor_t} sec)\n"
             
         logger.info(time_info_str)
-        # Kill all ly processes
+        if cls.asset_processor is not None:
             cls.asset_processor.teardown()
-        cls._kill_ly_processes()
+
+        # Kill all ly processes
+        cls._kill_ly_processes(include_asset_processor=True)
 
     def _run_test(self, request, workspace, editor, testcase_module, extra_cmdline_args=[], batch_mode=True,
                   autotest_mode=True, use_null_renderer=True, enable_prefab_system=True):
@@ -62,12 +64,14 @@ class TestAutomationBase:
         
         #########
         # Setup #
-        
         if self.asset_processor is None:
+            self._kill_ly_processes(include_asset_processor=True)
             self.__class__.asset_processor = AssetProcessor(workspace)
             self.asset_processor.backup_ap_settings()
-        
+        else:
             self._kill_ly_processes(include_asset_processor=False)
+
+        if not self.asset_processor.process_exists():
             self.asset_processor.start()
             self.asset_processor.wait_for_idle()