diff --git a/pupil_src/shared_modules/accuracy_visualizer.py b/pupil_src/shared_modules/accuracy_visualizer.py
index 92b3bf79c6..6c1d8d96ed 100644
--- a/pupil_src/shared_modules/accuracy_visualizer.py
+++ b/pupil_src/shared_modules/accuracy_visualizer.py
@@ -58,6 +58,13 @@ def empty() -> "CorrelatedAndCoordinateTransformedResult":
             camera_space=np.ndarray([]),
         )
 
+    @property
+    def is_valid(self) -> bool:
+        if len(self.norm_space.shape) != 2:
+            return False
+        # TODO: Make validity check exhaustive
+        return True
+
 
 class CorrelationError(ValueError):
     pass
@@ -78,6 +85,13 @@ def failed() -> "AccuracyPrecisionResult":
             correlation=CorrelatedAndCoordinateTransformedResult.empty(),
         )
 
+    @property
+    def is_valid(self) -> bool:
+        if not self.correlation.is_valid:
+            return False
+        # TODO: Make validity check exhaustive
+        return True
+
 
 class ValidationInput:
     def __init__(self):
@@ -354,10 +368,12 @@ def __handle_validation_data_notification(self, note_dict: dict) -> bool:
         return True
 
     def recalculate(self):
+        NOT_ENOUGH_DATA_COLLECTED_ERR_MSG = (
+            "Did not collect enough data to estimate gaze mapping accuracy."
+        )
+
         if not self.recent_input.is_complete:
-            logger.info(
-                "Did not collect enough data to estimate gaze mapping accuracy."
-            )
+            logger.warning(NOT_ENOUGH_DATA_COLLECTED_ERR_MSG)
             return
 
         results = self.calc_acc_prec_errlines(
@@ -371,6 +387,10 @@ def recalculate(self):
             succession_threshold=self.succession_threshold,
         )
 
+        if not results.is_valid:
+            logger.warning(NOT_ENOUGH_DATA_COLLECTED_ERR_MSG)
+            return
+
         accuracy = results.accuracy.result
         if np.isnan(accuracy):
             self.accuracy = None