Login flow fails for Support Portal

Last updated: February 23, 2026

This issue is applicable to customers matching these conditions

Plans: Any

Deployments: Any

Use case: Support Portal

Issue

While attempting to login to the Support Portal at https://support.braintrust.dev, you notice you are either taken to an error page that reads Unexpected Application Error! usePortalOrg must be used within a PortalOrgProvider or an endless loop of redirects occurs between https://support.braintrust.dev and https://braintrust.dev.

Cause

The occurs because the Pylon Support Portal requires third party cookies in order to authenticate.

Resolution(s)

If you are in an Incognito browser

Login to the Support Portal in a non-incognito session

Otherwise, if you are using a standard session

Check your browser third party cookie settings, in Chrome you can do this by:

Step 1: Navigating to Settings > Privacy and Security

Step 2: Clicking Third-party cookies

Step 3: If the Block third party cookies setting is enabled you can either enable Allow third party cookies instead or you can add https://support.braintrust.dev to the Sites allowed to use Third-party cookies list