why is this only sometimes

src/manjaro_hello.py

@@ -4,6 +4,7 @@ import gettext
 import gi
 import json
 import locale
+import logging
 import os
 import subprocess
 import sys
@@ -40,7 +41,7 @@ class Hello(Gtk.Window):
             self.preferences["ui_path"] = "ui/{}.glade".format(self.app)
         else:
             self.preferences = read_json("/usr/share/{}/data/preferences.json".format(self.app))
-
+        logging.info(f"hello prefs is: {self.preferences}")
         # Get saved infos
         self.save = read_json(self.preferences["save_path"])
         if not self.save:
@@ -102,12 +103,20 @@ class Hello(Gtk.Window):
         else:
             if APPS_PLUGIN:
                 # create page install Applications
+                """
+                # why does it only work with --dev
+                """
                 try:
                     # exception is with iso
                     conf = HelloConfig("manjaro-hello")
+
+                    # this fails if self.dev = False
+                    logging.debug(f"self.dev is: {self.dev}")
                     self.builder.get_object("applications").set_visible(True)
+
                     app_install = ApplicationBrowser(conf, self)
                     self.builder.get_object("stack").add_named(app_install, "applicationspage")
+
                 except NoAppInIsoError:
                     print("no apps in iso error")
                     pass
@@ -261,7 +270,7 @@ class Hello(Gtk.Window):
             dialog = self.builder.get_object("aboutdialog")
             dialog.run()
             dialog.hide()
-        elif name == "browser":
+        elif name == "applications":
             # or use only "on_btn_clicked" ?
             self.builder.get_object("home").set_sensitive(not name == "home")
             self.builder.get_object("stack").set_visible_child_name(name + "page")
@@ -348,6 +357,7 @@ def get_lsb_infos():
 
 
 if __name__ == "__main__":
+    logging.basicConfig(level=logging.DEBUG)
     hello = Hello()
     hello.connect("destroy", Gtk.main_quit)
     Gtk.main()