diff --git a/python/tk_multi_workfiles/file_save_form.py b/python/tk_multi_workfiles/file_save_form.py
index 74276b94..f93b6b76 100644
--- a/python/tk_multi_workfiles/file_save_form.py
+++ b/python/tk_multi_workfiles/file_save_form.py
@@ -71,7 +71,9 @@ def __init__(self, parent=None):
             self._allow_preview_update = True
             # Manually invoke the preview update here so it is only called once due to the
             # _allow_preview_update flag.
-            self._start_preview_update()
+            # this is unneccesary at this stage, callbacks set the preview update fine,
+            # and too many calls to this function can lock the gui
+            #self._start_preview_update()
         except Exception:
             self._allow_preview_update = True
             app = sgtk.platform.current_bundle()