Amazon Q VS Code: Authentication loop and model selector missing — blocking work

[shreyanxhh]

Problem:

Amazon Q Developer in VS Code has started repeatedly asking me to Authenticate, even after successfully logging in.

I have already logged in with a fresh account and repeated the authentication flow around 5 times, but the issue keeps happening.

After authentication:

1. Amazon Q appears to be authenticated.
2. I send a message in the Q Chat.
3. The chat shows the Authenticate button again.
4. Clicking Authenticate takes me through the login flow again.
5. After logging in, the same issue happens again.

This creates an authentication/login loop and I am currently unable to use Amazon Q for my work.

Additional issue: Model selection missing

The model selection option is also not appearing correctly in the Q Chat.

Currently, the chat only shows Claude Sonnet 4, and I don't get the expected model selection options.

Steps to reproduce

1. Open VS Code with the Amazon Q Developer extension.
2. Open Amazon Q Chat.
3. Authenticate/login with a fresh account.
4. Send a message in the chat.
5. The Authenticate button appears again.
6. Click Authenticate.
7. Complete the login flow again.
8. Send another message.
9. The same authentication prompt appears again.

The authentication flow repeats continuously.

Expected behavior

After successfully authenticating, Amazon Q should remain authenticated and allow me to continue chatting without requiring authentication again.

The model selector should also be available in the chat interface so that I can select from the models available to my account.

Actual behavior

• Authentication does not persist.
• Amazon Q repeatedly shows Authenticate after login.
• Clicking Authenticate repeatedly sends me through the login/logout flow.
• Model selection options are not appearing.
• I am currently blocked from using Amazon Q for development work.

Impact

High priority / Blocking

I am currently stuck and unable to continue my work using Amazon Q.

Could you please investigate and fix this on priority? I have already tried logging in multiple times with a fresh account, but the authentication loop continues.

System details

• OS: Windows
• IDE: Visual Studio Code
• Extension: Amazon Q Developer
• Model shown: Claude Sonnet 4
• Authentication: Builder ID / personal account
• Issue: Authentication loop + missing model selection

[Snehalkumar-Patel]

Same issue recurring for me as well. Unable to use Amazon Q.

[laileni-aws]

Hi,

This issue you encountered has been resolved. Please update your Amazon Q plugin to the latest versions. If you’re able to reproduce the issue after updating, please let us know.

Thanks.