Setting up Authentication breaks the app?

[SeaDude]

Please provide us with the following information:

This issue is for a: (mark with an x)

- [X] bug report -> please search issues before submitting
- [ ] feature request
- [ ] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)

Minimal steps to reproduce

1. Setup a working Azure Event Grid Viewer using the Deploy to Azure button
2. Once setup, verify AEGV is working by sending an SMS text to your Azure Comm Services phone number
3. From the Azure Portal, select the AEGV App Service blade and select Authentication
4. Select Microsoft as the Identity Provider
   • 
5. Refresh AEGV (or open an Incognito Browser tab) and login
6. Try to send an SMS text to your Azure Comm Services phone number
7. Event Grid messages in AEGV are dropped
   • 

Any log messages given by the failure

NONE

Expected/desired behavior

Event Grid messages show in AEGV

OS and Version?

Windows 10 PRO

Versions

Mention any other details that might be useful

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Thanks! We'll be in touch soon.

[SeaDude]

Tried...

• Setting a SAMI for the Event Grid subscription
  • 
• Added the SAMI to the AEGV App Service as Contributor Role
  • 
  • 

No go. Still no EG messages shown in AEGV.

Ideas?