diff --git a/app/scodoc/sco_bulletins_standard.py b/app/scodoc/sco_bulletins_standard.py
index 842844d680..f1b2b7cc73 100644
--- a/app/scodoc/sco_bulletins_standard.py
+++ b/app/scodoc/sco_bulletins_standard.py
@@ -380,10 +380,10 @@ class BulletinGeneratorStandard(sco_bulletins_generator.BulletinGenerator):
         t = {
             "titre": "Moyenne générale:",
             "rang": I["rang_nt"],
-            "note": I["moy_gen"],
-            "min": I["moy_min"],
-            "max": I["moy_max"],
-            "moy": I["moy_moy"],
+            "note": I.get("moy_gen", "-"),
+            "min": I.get("moy_min", "-"),
+            "max": I.get("moy_max", "-"),
+            "moy": I.get("moy_moy", "-"),
             "abs": "%s / %s" % (nbabs, nbabsjust),
             "_css_row_class": "notes_bulletin_row_gen",
             "_titre_colspan": 2,
diff --git a/app/scodoc/sco_edit_apc.py b/app/scodoc/sco_edit_apc.py
index cec8b7c2a1..c53094ef53 100644
--- a/app/scodoc/sco_edit_apc.py
+++ b/app/scodoc/sco_edit_apc.py
@@ -166,7 +166,7 @@ def html_edit_formation_apc(
 
 
 def html_ue_infos(ue):
-    """page d'information sur une UE"""
+    """Page d'information sur une UE"""
     from app.views import ScoData
 
     formsemestres = (
@@ -189,7 +189,6 @@ def html_ue_infos(ue):
     )
     return render_template(
         "pn/ue_infos.html",
-        # "pn/tmp.html",
         titre=f"UE {ue.acronyme} {ue.titre}",
         ue=ue,
         formsemestres=formsemestres,
diff --git a/app/views/__init__.py b/app/views/__init__.py
index f3c8e13d4f..4696872a18 100644
--- a/app/views/__init__.py
+++ b/app/views/__init__.py
@@ -97,7 +97,12 @@ class ScoData:
                 self.sem.to_dict()
             )
         # --- Préférences
-        self.prefs = sco_preferences.SemPreferences(formsemestre.id)
+        # prefs fallback to global pref if sem is None:
+        if formsemestre:
+            formsemestre_id = formsemestre.id
+        else:
+            formsemestre_id = None
+        self.prefs = sco_preferences.SemPreferences(formsemestre_id)
 
 
 from app.views import scodoc, notes, scolar, absences, users, pn_modules, refcomp
diff --git a/sco_version.py b/sco_version.py
index 7657bac433..e62e3eb870 100644
--- a/sco_version.py
+++ b/sco_version.py
@@ -1,7 +1,7 @@
 # -*- mode: python -*-
 # -*- coding: utf-8 -*-
 
-SCOVERSION = "9.1.78"
+SCOVERSION = "9.1.79"
 
 SCONAME = "ScoDoc"