diff --git a/app/but/jury_but_recap.py b/app/but/jury_but_recap.py
index dc30f4f3..a3a0e0a6 100644
--- a/app/but/jury_but_recap.py
+++ b/app/but/jury_but_recap.py
@@ -8,6 +8,7 @@
 """
 
 import time
+import numpy as np
 from flask import g, url_for
 
 from app.but import jury_but
@@ -182,9 +183,16 @@ def build_table_jury_but_html(
 class RowCollector:
     """Une ligne de la table"""
 
-    def __init__(self, cells: dict = None, titles: dict = None, convert_values=True):
+    def __init__(
+        self,
+        cells: dict = None,
+        titles: dict = None,
+        convert_values=True,
+        column_classes: dict = None,
+    ):
         self.titles = titles
         self.row = cells or {}  # col_id : str
+        self.column_classes = column_classes  # col_id : str, css class
         self.idx = 0
         self.last_etud_cell_idx = 0
         if convert_values:
@@ -198,6 +206,17 @@ class RowCollector:
     def __getitem__(self, key):
         return self.row[key]
 
+    def get_row_dict(self):
+        "La ligne, comme un dict"
+        # create empty cells
+        for col_id in self.titles:
+            if col_id not in self.row:
+                self.row[col_id] = ""
+                klass = self.column_classes.get(col_id)
+                if klass:
+                    self.row[f"_{col_id}_class"] = klass
+        return self.row
+
     def add_cell(
         self,
         col_id: str,
@@ -205,8 +224,9 @@ class RowCollector:
         content: str,
         classes: str = "",
         idx: int = None,
+        column_class="",
     ):
-        "Add a row to our table. classes is a list of css class names"
+        """Add a row to our table. classes is a list of css class names"""
         self.idx = idx if idx is not None else self.idx
         self.row[col_id] = content
         if classes:
@@ -216,6 +236,7 @@ class RowCollector:
             self.titles[f"_{col_id}_col_order"] = self.idx
             if classes:
                 self.titles[f"_{col_id}_class"] = classes
+        self.column_classes[col_id] = column_class
         self.idx += 1
 
     def add_etud_cells(self, etud: Identite, formsemestre: FormSemestre):
@@ -254,13 +275,18 @@ class RowCollector:
             if val < BUT_BARRE_UE8:
                 note_class = " moy_ue_warning"  # notes très basses
         self.add_cell(
-            col_id, dec_ue.ue.acronyme, self.fmt_note(val), "col_ue" + note_class
+            col_id,
+            dec_ue.ue.acronyme,
+            self.fmt_note(val),
+            "col_ue" + note_class,
+            column_class="col_ue",
         )
         self.add_cell(
             col_id + "_code",
             dec_ue.ue.acronyme,
             dec_ue.code_valide or "",
             "col_ue_code recorded_code",
+            column_class="col_ue",
         )
 
     def add_rcue_cells(self, dec_rcue: DecisionsProposeesRCUE):
@@ -308,7 +334,11 @@ class RowCollector:
         if len(deca.rcues_annee) > 0:
             # permet un tri par nb de niveaux validables + moyenne gen indicative S_pair
             if deca.res_pair and deca.etud.id in deca.res_pair.etud_moy_gen:
-                moy_gen_d = f"{int(deca.res_pair.etud_moy_gen[deca.etud.id]*1000):05}"
+                moy = deca.res_pair.etud_moy_gen[deca.etud.id]
+                if np.isnan(moy):
+                    moy_gen_d = "x"
+                else:
+                    moy_gen_d = f"{int(moy*1000):05}"
             else:
                 moy_gen_d = "x"
             self["_rcues_validables_order"] = f"{deca.nb_validables:04d}-{moy_gen_d}"
@@ -326,11 +356,12 @@ def get_table_jury_but(
     """Construit la table des résultats annuels pour le jury BUT"""
     res2: ResultatsSemestreBUT = res_sem.load_formsemestre_results(formsemestre2)
     titles = {}  # column_id : title
+    column_classes = {}
     rows = []
     for etudid in formsemestre2.etuds_inscriptions:
         etud: Identite = Identite.query.get(etudid)
         deca = jury_but.DecisionsProposeesAnnee(etud, formsemestre2)
-        row = RowCollector(titles=titles)
+        row = RowCollector(titles=titles, column_classes=column_classes)
         row.add_etud_cells(etud, formsemestre2)
         row.idx = 100  # laisse place pour les colonnes de groupes
         # --- Nombre de niveaux
@@ -365,10 +396,11 @@ def get_table_jury_but(
                 """,
                 "col_lien_saisie_but",
             )
-        rows.append(row.row)
-    if len(rows) > 0:
-        res2.recap_add_partitions(rows, titles, col_idx=row.last_etud_cell_idx + 1)
+        rows.append(row)
+    rows_dict = [row.get_row_dict() for row in rows]
+    if len(rows_dict) > 0:
+        res2.recap_add_partitions(rows_dict, titles, col_idx=row.last_etud_cell_idx + 1)
     column_ids = [title for title in titles if not title.startswith("_")]
     column_ids.sort(key=lambda col_id: titles.get("_" + col_id + "_col_order", 1000))
-    rows.sort(key=lambda row: row["_nom_disp_order"])
-    return rows, titles, column_ids
+    rows_dict.sort(key=lambda row: row["_nom_disp_order"])
+    return rows_dict, titles, column_ids