Why do I see errors like “Invalid transition challenge” when logging in?

If a browser window opens but shows unusual errors when you try to log in, it usually means something is interfering with the authentication process.

What’s happening:
Security settings, browser restrictions, or device management tools may be interrupting the login flow.

What to check first:

1. Open your phone’s browser and go to:
   my.halosystem.cloud/login
2. Try logging in there directly

What this tells you:

• If web login works: the issue is likely with how the app is launching the browser (see “No browser window opening” above)
• If web login fails: there may be a broader access or account issue

Next steps:

• Try a different browser on your device
• Check for content blockers or security apps
• Contact IT if the issue persists (especially on managed devices)