diff --git a/amber/src/main/python/core/architecture/managers/executor_manager.py b/amber/src/main/python/core/architecture/managers/executor_manager.py
index 8daa0b9e644..e211a6a90f8 100644
--- a/amber/src/main/python/core/architecture/managers/executor_manager.py
+++ b/amber/src/main/python/core/architecture/managers/executor_manager.py
@@ -113,9 +113,6 @@ def load_executor_definition(self, code: str) -> type(Operator):
             file.write(code)
         logger.debug(f"A tmp py file is written to {file_path}.")
 
-        # Clear importlib's directory listing cache so freshly written
-        # temporary modules are discoverable on systems with coarse mtime.
-        importlib.invalidate_caches()
         # gen_module_file_name guarantees module_name is unique across
         # the process, so import_module will always cleanly load source
         # from the tmp directory we just wrote — no re-import / reload dance.