v0 workspace unusable after recent Vercel incident — messages, login and credit balance fail

v0
1

Help needed.

My v0 workspace suddenly became unusable while I was working normally. I did not intentionally change my account, billing plan, workspace, authentication settings, or project configuration.

The main issue is that I cannot send messages in v0 anymore. Even in a new chat, every message fails with:

Failed to submit message. Start a new chat, retry, or edit your message.

In addition, I sometimes cannot log into v0 correctly. The login callback fails with:

/login-callback/error?reason=failed&next=%2F&action=login

and the page shows:

Authentication failed. Something went wrong while signing you in. Please try again.

I also saw this project error:

Could not get credentials from OIDC context. Please make sure OIDC is set up for your project.

The credit balance page also fails with:

There was an error fetching your credit balance. Something went wrong.

I have an active v0 Team subscription and an active Vercel Pro subscription. Support already confirmed that I do not need to upgrade to Business.

This may be related to the Vercel incident on Jun 25, 2026:
Increase in Workflow runs stuck as pending

The incident mentioned that some Workflow projects were stuck as pending and not delivering queued messages as expected. My issue started around the same time. Although the incident is marked as resolved, my workspace still appears to be affected.

This is blocking my work completely. Please check the backend authorization, workspace credentials, billing API state, and v0 message submission for my team workspace.

2

Same issue here.

Everything was working normally until today, then suddenly my workspace became unusable.

I’m seeing exactly the same errors:

  • Authentication failed
  • /login-callback/error?reason=failed&next=%2F&action=login
  • Could not get credentials from OIDC context
  • Failed to load project preview

This happens across multiple projects, browsers (Chrome and Edge), and devices.

I also confirmed there is an ongoing incident on the Vercel Status page regarding elevated dashboard errors.

I’m glad to know I’m not the only one experiencing this. Hopefully it will be resolved soon.

3

Yap, same problem…last fix and bam, no access :smiley:

4

I found a temporary workaround that worked for me.

I was still getting:

  • Authentication failed

  • /login-callback/error?reason=failed&next=%2Faction=login

  • Could not get credentials from OIDC context

However, I managed to access my workspace by following these steps:

  1. Click Go back to v0.

  2. On the home page, open any template under Start with a template.

  3. Click Open in v0.

  4. Instead of Sign In, click Sign Up.

  5. Choose my existing Google account.

Even though I clicked Sign Up, it recognized my existing account and logged me into my workspace successfully.

This seems to use a different authentication flow than the normal Sign In page.

Hopefully this helps someone else until the login issue is fixed.