Azure Vision Studio Not Loading Properly — Continuous Loading Issue

Hello Muhammad Ejaz,

Welcome to the Microsoft Q&A and thank you for posting your questions here.

I understand that your Azure Vision Studio remains stuck on the “Loading…” screen, despite successful access to the main Azure Portal.

This is often linked to regional limitations or subscription constraints, particularly with Azure for Students accounts. To begin resolving this, verify whether Azure Vision Studio is supported in your selected region (Asia South) by checking the Azure Products by Region. Azure for Students subscriptions are typically restricted to specific regions such as Central India or East Asia, and Asia South may not be fully supported for Vision Studio. If your subscription allows, try creating a Cognitive Services resource in a supported region like East US or West Europe and access Vision Studio from there.

Next, ensure your Azure role assignments are correctly configured. Navigate to your Cognitive Services resource in the Azure Portal, go to Access Control (IAM), and confirm that your account has either the Owner, Contributor, or Cognitive Services Contributor role. This ensures you have the necessary permissions to interact with Vision Studio.

If the issue persists, check for service-level problems by visiting the Azure Status Page and Azure Service Health. Notably, a recent Azure Front Door outage affected Vision Studio access in several regions, which may be contributing to the problem.

For further diagnostics, open your browser’s Developer Tools (F12), as @ switch to the Console tab, and look for errors such as 401, 403, or CORS-related failures. These can indicate authentication or network issues. Also, disable any VPNs, proxies, or browser extensions that might interfere with WebSocket or CORS requests, and try accessing the portal from a different network, such as a mobile hotspot.

If Vision Studio remains inaccessible, you can still use Azure Vision capabilities via REST APIs or SDKs. Check the Azure AI Vision Documentation for guidance on using features like OCR, image analysis, and object detection programmatically.

Finally, if none of these steps resolve the issue, consider opening a support ticket through the https://portal.azure.com/#blade/Microsoft_Azure_Support/HelpAndSupportBlade to request assistance or region access adjustments.

I hope this is helpful! Do not hesitate to let me know if you have any other questions or clarifications.

Please don't forget to close up the thread here by upvoting and accept it as an answer if it is helpful.

Hello Muhammad Ejaz,

Welcome to Microsoft Q&A,

Thank you for reaching out and providing detailed troubleshooting information that’s very helpful.

I understand that Azure Vision Studio is continuously loading and not opening correctly, even though you’re able to access the main Azure Portal without issues.

I tried reproducing this issue in my own environment, and Vision Studio opened successfully without any problems, which suggests this might be specific to your region, subscription type, or local network setup.

Let’s go through a few key checks and potential solutions that may help resolve this:

1. Regional Availability or Service-Side Issue

Azure Vision Studio can occasionally experience regional performance degradation or outages.

As of now, there are no global outages officially reported, but there could be regional latency or connectivity issues in the Asia South (Pakistan) region.

Please check the Azure Status Page or Azure Service Health to see if there’s an active issue impacting Cognitive Services or Vision Studio in your region.

As a temporary workaround, you can try creating a Cognitive Services resource in another region (e.g., East US or West Europe) and see if Vision Studio opens successfully there.

2. Account Type and Subscription Constraints

Since you’re using an Azure for Students (Free Trial) account:

Some Vision Studio features may have limited access or restrictions under student/free subscriptions.

Please ensure your Cognitive Services resource is correctly deployed and linked to your subscription:

Navigate to: Azure Portal → Cognitive Services → Keys and Endpoint

  Confirm that the endpoint is active and properly configured.
  

3. Network or Browser Configuration

You’ve already tried clearing cache, cookies, using incognito mode, and switching browsers great steps! Let’s add a few more checks:

Allow Third-Party Cookies:

In Chrome, go to chrome://settings/cookies

  Select **Allow all cookies**, or add an exception for `portal.vision.cognitive.azure.com`.
  
  **Disable VPN or Proxy:** Vision Studio relies on WebSockets and CORS requests that can be blocked by some networks or VPNs.
  
  **Try a Different Network:** Connect via a **mobile hotspot** or another Wi-Fi to rule out firewall or ISP-level restrictions.
  

4. Diagnostic Check

If the page still remains stuck on “Loading…”:

• Open Developer Tools (F12) → Console tab
• Look for any red errors related to CORS, authentication, or network requests.
  • For example, “Failed to fetch” or “401/403 Unauthorized” errors can indicate token or permission issues.

If Vision Studio still doesn’t load after these checks:

• You can continue using Vision APIs directly (such as Image Analysis, OCR/Read, or Object Detection) through:
  • The Azure Portal,
  • REST API, or
  • SDKs (Python, C#, or Node.js).
• You can follow this guide for reference Azure AI Vision Documentation.

Please try these suggestions and let me know what you observe especially if Vision Studio loads correctly in another region or with a different network. I’ll be happy to help you further based on those findings.

I Hope this helps. Do let me know if you have any further queries.

Thank you!