diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2a6feb96..4a2bef4e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,9 +17,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Web
     - handling unexpected connection errors
     - handling web page fetch errors
+    - not able to search apps by their names after being enabled on settings
 - UI
     - displaying empty categories
     - not scrolling the table to top after updating its content
+    - not calling initial required tasks after enabling a new package type on settings
     - minor fixes
 
 ## [0.9.5] 2020-06-07
diff --git a/bauh/gems/snap/controller.py b/bauh/gems/snap/controller.py
index 5a843b13..5def1d6a 100644
--- a/bauh/gems/snap/controller.py
+++ b/bauh/gems/snap/controller.py
@@ -139,7 +139,7 @@ class SnapManager(SoftwareManager):
         return ProcessHandler(watcher).handle(SystemProcess(subproc=snap.downgrade_and_stream(pkg.name, root_password), wrong_error_phrase=None))
 
     def upgrade(self, requirements: UpgradeRequirements, root_password: str, watcher: ProcessWatcher) -> SystemProcess:
-        raise Exception("'update' is not supported by {}".format(pkg.__class__.__name__))
+        raise Exception("'upgrade' is not supported by {}".format(SnapManager.__class__.__name__))
 
     def uninstall(self, pkg: SnapApplication, root_password: str, watcher: ProcessWatcher) -> bool:
         uninstalled = ProcessHandler(watcher).handle(SystemProcess(subproc=snap.uninstall_and_stream(pkg.name, root_password)))
@@ -229,12 +229,14 @@ class SnapManager(SoftwareManager):
         return ProcessHandler(watcher).handle(SystemProcess(subproc=snap.refresh_and_stream(pkg.name, root_password)))
 
     def _start_category_task(self, task_man: TaskManager):
-        task_man.register_task('snap_cats', self.i18n['task.download_categories'].format('Snap'), get_icon_path())
-        task_man.update_progress('snap_cats', 50, None)
+        if task_man:
+            task_man.register_task('snap_cats', self.i18n['task.download_categories'].format('Snap'), get_icon_path())
+            task_man.update_progress('snap_cats', 50, None)
 
     def _finish_category_task(self, task_man: TaskManager):
-        task_man.update_progress('snap_cats', 100, None)
-        task_man.finish_task('snap_cats')
+        if task_man:
+            task_man.update_progress('snap_cats', 100, None)
+            task_man.finish_task('snap_cats')
 
     def prepare(self, task_manager: TaskManager, root_password: str, internet_available: bool):
         CategoriesDownloader(id_='snap', manager=self, http_client=self.http_client, logger=self.logger,
diff --git a/bauh/gems/web/controller.py b/bauh/gems/web/controller.py
index ce062fc2..925f8980 100644
--- a/bauh/gems/web/controller.py
+++ b/bauh/gems/web/controller.py
@@ -251,6 +251,10 @@ class WebApplicationManager(SoftwareManager):
 
             index = self._read_search_index()
 
+            if not index and self.suggestions_downloader and self.suggestions_downloader.is_alive():
+                self.suggestions_downloader.join()
+                index = self._read_search_index()
+
             if index:
                 split_words = lower_words.split(' ')
                 singleword = ''.join(lower_words)
diff --git a/bauh/view/core/controller.py b/bauh/view/core/controller.py
index a7b88d71..62bca641 100755
--- a/bauh/view/core/controller.py
+++ b/bauh/view/core/controller.py
@@ -356,10 +356,10 @@ class GenericSoftwareManager(SoftwareManager):
     def prepare(self, task_manager: TaskManager, root_password: str, internet_available: bool):
         if self.managers:
             internet_on = internet.is_available()
+            taskman = task_manager if task_manager else TaskManager()  # empty task manager to prevent null pointers
             for man in self.managers:
                 if man not in self._already_prepared and self._can_work(man):
-                    if task_manager:
-                        man.prepare(task_manager, root_password, internet_on)
+                    man.prepare(taskman, root_password, internet_on)
                     self._already_prepared.append(man)
 
     def list_updates(self, internet_available: bool = None) -> List[PackageUpdate]: