diff --git a/admin/api/password.go b/admin/api/password.go
index 1941df38..d37153e9 100644
--- a/admin/api/password.go
+++ b/admin/api/password.go
@@ -8,7 +8,6 @@ import (
 	"net/http"
 	"os"
 	"path"
-	"strings"
 	"text/template"
 	"unicode"
 
@@ -242,7 +241,7 @@ func genDexConfig() ([]byte, error) {
 
 	logoPath := ""
 	if len(challengeInfo.MainLogo) > 0 {
-		logoPath = strings.Replace(challengeInfo.MainLogo[len(challengeInfo.MainLogo)-1], "$FILES$", fic.FilesDir, -1)
+		logoPath = path.Join("../../files", "logo", path.Base(challengeInfo.MainLogo[len(challengeInfo.MainLogo)-1]))
 	}
 
 	dexTmpl, err := template.New("dexcfg").Parse(dexcfgtpl)
@@ -286,6 +285,11 @@ func genDexConfig() ([]byte, error) {
 }
 
 func genDexPasswordTpl() ([]byte, error) {
+	challengeInfo, err := GetChallengeInfo()
+	if err != nil {
+		return nil, fmt.Errorf("Cannot create template: %w", err)
+	}
+
 	if teams, err := fic.GetTeams(); err != nil {
 		return nil, err
 	} else {
@@ -295,6 +299,7 @@ func genDexPasswordTpl() ([]byte, error) {
 			return nil, fmt.Errorf("Cannot create template: %w", err)
 		} else if err = dexTmpl.Execute(b, dexConfig{
 			Teams: teams,
+			Name:  challengeInfo.Title,
 		}); err != nil {
 			return nil, fmt.Errorf("An error occurs during template execution: %w", err)
 		} else {
diff --git a/admin/static/js/app.js b/admin/static/js/app.js
index 19a3f518..173df8b1 100644
--- a/admin/static/js/app.js
+++ b/admin/static/js/app.js
@@ -958,12 +958,13 @@ angular.module("FICApp")
         })
 
 	.controller("OAuthController", function ($scope, $http) {
+		$scope.oauth_status = {};
 		$scope.refreshOAuthStatus = function () {
 			$http.get("api/oauth-status").then(function (res) {
-                                $scope.oauth_status = response.data;
+                                $scope.oauth_status = res.data;
                         });
-
                 };
+                $scope.refreshOAuthStatus();
 
 		$scope.genDexCfg = function () {
 			$http.post("api/dex.yaml").then(function () {
diff --git a/admin/static/views/sync.html b/admin/static/views/sync.html
index 886a28cd..06d8e84f 100644
--- a/admin/static/views/sync.html
+++ b/admin/static/views/sync.html
@@ -58,7 +58,6 @@
 	</button>
 	<div class="dropdown-menu" ng-controller="ThemesListController" style="max-height: 45vh; overflow: auto">
 	  <a class="dropdown-item" ng-click="deepSync(theme)" ng-repeat="theme in themes" ng-bind="theme.name"></a>
-	  <a class="dropdown-item" ng-click="deepSync({name: 'Exercices indépendants', id: 0})">Exercices indépendants</a>
 	</div>
       </div>
       <button type="button" class="btn btn-secondary" ng-click="speedyDeepSync()" ng-disabled="deepSyncInProgress"><span class="glyphicon glyphicon-import" aria-hidden="true"></span> Synchronisation sans fichiers</button>
diff --git a/admin/sync/exercice_files.go b/admin/sync/exercice_files.go
index 276a72e4..11afe1ff 100644
--- a/admin/sync/exercice_files.go
+++ b/admin/sync/exercice_files.go
@@ -363,7 +363,7 @@ func SyncExerciceFiles(i Importer, exercice *fic.Exercice, exceptions *CheckExce
 
 		var f interface{}
 
-		if pf, exists := paramsFiles[fname]; exists && pf.URL != "" {
+		if pf, exists := paramsFiles[fname]; exists && pf.URL != "" && !i.Exists(path.Join(exercice.Path, "files", fname)) {
 			dest := GetDestinationFilePath(pf.URL, &pf.Filename)
 
 			if _, err := os.Stat(dest); !os.IsNotExist(err) {
diff --git a/frontend/fic/src/lib/components/ExerciceFlags.svelte b/frontend/fic/src/lib/components/ExerciceFlags.svelte
index c5c8e24c..260734a9 100644
--- a/frontend/fic/src/lib/components/ExerciceFlags.svelte
+++ b/frontend/fic/src/lib/components/ExerciceFlags.svelte
@@ -39,16 +39,21 @@
 
      submissions.update((u) => {
          for (const k in last_submission.flags) {
-             u.flags[k] = last_submission.flags[k];
+             if (last_submission.flags[k])
+                 u.flags[k] = last_submission.flags[k];
          }
 
          for (const k in last_submission.mcqs) {
-             u.mcqs[k] = last_submission.mcqs[k];
+             if (last_submission.mcqs[k])
+                 u.mcqs[k] = last_submission.mcqs[k];
          }
 
          for (const k in last_submission.justifications) {
-             u.justifications[k] = last_submission.justifications[k];
+             if (last_submission.justifications[k])
+                 u.justifications[k] = last_submission.justifications[k];
          }
+
+         return u;
      })
 
      if ($my && $my.team_id === 0) {