Getting error "o.isUcEnabled is not a function" in Azure Databricks Workspace.

Question

Getting error "o.isUcEnabled is not a function" in Azure Databricks Workspace.

Satyajit Tarai 0

Hello All,

When we are trying to access Azure Databricks. It is displaying "o.isUcEnabled is not a function".

We are unable to open workspace where we can check our jobs status and others.

Please let me know why this is happening all of sudden.

Thanks

Satyajit

Venkat Reddy Navari 2,885 Reputation points Microsoft External Staff Moderator

2025-05-19T10:17:06.6633333+00:00
Hi @Satyajit Tarai The error message "o.isUcEnabled is not a function" appears to be related to a JavaScript issue in the Azure Databricks web UI, possibly due to a recent update or a temporary glitch in the browser cache or Databricks workspace environment.

Here are a few steps you can try to resolve the issue:

Clear Browser Cache and Cookies

Corrupted or outdated browser cache data can sometimes break functionality in web applications like Databricks.

Please try clearing your browser cache and cookies, then refresh the workspace page.

Use Incognito Mode or a Different Browser

Try accessing the Databricks workspace in a private/incognito window.

If that doesn't help, try a different browser (e.g., Chrome, Edge, Firefox) to rule out browser-specific issues.

Disable Browser Extensions

Some extensions, such as ad blockers or script blockers, may interfere with Databricks UI elements.

Temporarily disable extensions to check if one of them is causing the problem.

Check Azure Service Health

There may be a temporary issue with the Databricks service in your region.

You can check for ongoing service issues at: https://ms.portal.azure.com/#view/Microsoft_Azure_Health/AzureHealthBrowseBlade/~/serviceIssues

Unity Catalog Feature Rollout or Misconfiguration

This error may be tied to Unity Catalog (UC) feature logic. If your workspace recently had Unity Catalog enabled or reconfigured, the UI may be attempting to call isUcEnabled, which might not exist due to:

Incomplete feature rollout.

Workspace feature flags being out of sync.

Backend updates that haven’t fully propagated.

If this issue started suddenly and nothing changed on your end, it might indicate a Databricks-side regression.

In this case, we strongly recommend contacting Azure Databricks Support to investigate backend logs and confirm the workspace configuration.

I hope this information helps. Please do let us know if you have any further queries.

Kindly consider upvoting the comment if the information provided is helpful. This can assist other community members in resolving similar issues.
Venkat Reddy Navari 2,885 Reputation points Microsoft External Staff Moderator

2025-05-20T09:28:07.0233333+00:00

@Satyajit Tarai We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.

1 answer

Your answer

Venkat Reddy Navari 2,885 Reputation points Microsoft External Staff Moderator

2025-05-20T09:28:07.0233333+00:00

@Satyajit Tarai We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.

Answer 1

Hello Satyajit Tarai,

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

I understand that you are getting error "o.isUcEnabled is not a function" in Azure Databricks Workspace.

The error is not cluster-related but tied to workspace UC configuration or UI code corruption. So, avoid unnecessary cluster adjustments like, DBR versions. Since the error occurs before cluster interaction and workspace-level UC configuration with cluster-specific settings are unrelated to the frontend error.

I will advise you to follow the steps below to resolve the issue:

Step 1:

Clear Cache by using Ctrl + Shift + Delete (Chrome/Edge) or follow Microsoft’s guide.
Disable Extensions by follow Chrome’s extension troubleshooting.
Test in Incognito/Another Browser to validate if the issue persists.

Step 2:

Check UC Activation by navigate to your Databricks workspace admin settings.
Confirm UC is enabled (see Enable UC for Workspaces).
Check Workspace region compatibility to ensure your workspace region supports UC - https://learn.microsoft.com/en-us/azure/databricks/data-governance/unity-catalog/.

Step 3:

Visit Azure Status for regional outages.
Monitor Databricks Status.

Step 4:

Open browser developer tools (F12 > Console).
Look for additional errors (e.g., failed script loads).
Example: A missing isUcEnabled function suggests a corrupted UI bundle or workspace misconfiguration.

Step 5:

Use the Azure Portal to restart the Databricks workspace in Manage Azure Databricks.

Step 6:

If unresolved, contact Azure Support with browser console logs, Workspace ID and region and timestamp of the error.

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.

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Getting error "o.isUcEnabled is not a function" in Azure Databricks Workspace.

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