diff --git a/app/scodoc/sco_groups.py b/app/scodoc/sco_groups.py
index 932c014a..8486fa95 100644
--- a/app/scodoc/sco_groups.py
+++ b/app/scodoc/sco_groups.py
@@ -241,7 +241,7 @@ def get_default_group(formsemestre_id, fix_if_missing=False):
         return group.id
     # debug check
     if len(r) != 1:
-        raise ScoException(f"invalid group structure for {formsemestre_id}")
+        log(f"invalid group structure for {formsemestre_id}: {len(r)}")
     group_id = r[0]["group_id"]
     return group_id
 
diff --git a/sco_version.py b/sco_version.py
index fa162ac9..10a961f9 100644
--- a/sco_version.py
+++ b/sco_version.py
@@ -1,7 +1,7 @@
 # -*- mode: python -*-
 # -*- coding: utf-8 -*-
 
-SCOVERSION = "9.5.1"
+SCOVERSION = "9.5.2"
 
 SCONAME = "ScoDoc"