diff --git a/gui/src/aaregui/threads/daq_worker.py b/gui/src/aaregui/threads/daq_worker.py
index c88937ae..9d8f53ad 100644
--- a/gui/src/aaregui/threads/daq_worker.py
+++ b/gui/src/aaregui/threads/daq_worker.py
@@ -131,6 +131,8 @@ class DAQWorker(QObject):
                     logger.error(f"{err_str}: baton taken by another user")
                     self._last_auth_error_log_ts = now
                 self.auth_error.emit()
+            elif status == 404:
+                self.sample_missing.emit(err_str)
             else:
                 logger.error(f"{err_str}")
                 self.http_error.emit(err_str)