diff --git a/taiga/base/neighbors.py b/taiga/base/neighbors.py
index ded44a76..b8368fa6 100644
--- a/taiga/base/neighbors.py
+++ b/taiga/base/neighbors.py
@@ -114,7 +114,6 @@ def _get_candidates(obj, results_set, reverse=False):
 
     return (results_set
             .filter(~Q(id=obj.id), disjunction_filters(filters))
-            .filter(project_id=obj.project.id)
             .distinct()
             .order_by(*ordering))
 _left_candidates = partial(_get_candidates, reverse=True)
diff --git a/taiga/projects/serializers.py b/taiga/projects/serializers.py
index 8ec0f860..5eab582a 100644
--- a/taiga/projects/serializers.py
+++ b/taiga/projects/serializers.py
@@ -185,11 +185,15 @@ class ProjectRoleSerializer(serializers.ModelSerializer):
 
 
 class RoleSerializer(serializers.ModelSerializer):
+    members_count = serializers.SerializerMethodField("get_members_count")
     permissions = PgArrayField(required=False)
 
     class Meta:
         model = Role
-        fields = ('id', 'name', 'permissions', 'computable', 'project', 'order')
+        fields = ('id', 'name', 'permissions', 'computable', 'project', 'order', 'members_count')
+
+    def get_members_count(self, obj):
+        return obj.memberships.count()
 
 
 class ProjectTemplateSerializer(serializers.ModelSerializer):