diff --git a/db/routines/vn/procedures/productionError_add.sql b/db/routines/vn/procedures/productionError_add.sql
index 5e0ce93f0..e29accac9 100644
--- a/db/routines/vn/procedures/productionError_add.sql
+++ b/db/routines/vn/procedures/productionError_add.sql
@@ -34,16 +34,22 @@ BEGIN
 	-- Rellena la tabla tmp.errorsByChecker con fallos de revisores
 	CREATE OR REPLACE TEMPORARY TABLE tmp.errorsByChecker
 		ENGINE = MEMORY
-			SELECT 	st.workerFk,
-				COUNT(t.id) errors
-			FROM saleMistake sm
-				JOIN saleTracking st ON sm.saleFk = st.saleFk
-				JOIN `state` s2 ON s2.id = st.stateFk
-				JOIN sale s ON s.id = sm.saleFk
-				JOIN ticket t on t.id = s.ticketFk
-			WHERE (t.shipped BETWEEN vDatedFrom AND vDatedTo)
-				AND s2.code IN ('OK','PREVIOUS_PREPARATION','PREPARED','CHECKED')
-			GROUP BY st.workerFk;
+		WITH rankedWorkers AS (
+			SELECT sm.id,
+					st.workerFk,
+					ROW_NUMBER() OVER(PARTITION BY sm.id ORDER BY s2.`order`) rnk
+				FROM vn.saleMistake sm
+					JOIN vn.saleTracking st ON sm.saleFk = st.saleFk
+					JOIN vn.`state` s2 ON s2.id = st.stateFk
+					JOIN vn.sale s ON s.id = sm.saleFk
+					JOIN vn.ticket t ON t.id = s.ticketFk
+				WHERE t.shipped BETWEEN vDatedFrom AND vDatedTo
+					AND s2.code IN ('OK', 'PREVIOUS_PREPARATION', 'PREPARED', 'CHECKED')
+		)
+		SELECT workerFk, COUNT(*) errors
+			FROM rankedWorkers
+			WHERE rnk = 1
+			GROUP BY workerFk;
 
  	-- Rellena la tabla tmp.expeditionErrors con fallos de expediciones
 	CREATE OR REPLACE TEMPORARY TABLE tmp.expeditionErrors