App detail view: App on/off doesn't change the status
Be connected, exclude an app. Check your exit IP, it is exclude as expected. Remain connected, go the app view, enable that single app to go through the tunnel. Check IP address: still the old IP, so not included. Protect all apps remains unticked. Go to the app details, it shows 'Protect this app' as on. Refresh circuit doesn't show any error.
Be connected, exclude an app, Switch the "connect all apps" to on. Check your IP in the app that was excluded. That app doesn't go through the tunnel.
Be connected, exclude an app. Switch the app back on, refresh circuits (in the app overview setting or in the app setting, same), that app is not using Tor.
The other way around, works as expected: be connected, launch your app, check if you use Tor (ok), then exclude that app, now it's going over the plain internet like you wanted.