A. 1. Check app permissions: Ensure the app has the necessary permissions to save settings. Go to Settings > Apps > Ember > Permissions and enable any necessary permissions. 2. Update the app: Make sure you are using the latest version of the app, as updates may fix bugs related to settings retention.

B. 3. Reconfigure settings: After ensuring permissions are correct, set your custom temperature again and see if it retains the setting after closing the app.