Authentication failed. Your session may have expired.

### Checks

- [x] I have searched [github.com/aws/amazon-q-developer-cli/issues](https://github.com/aws/amazon-q-developer-cli/issues?q=) and there are no duplicates of my issue
- [x] I have run `q doctor` in the affected terminal session
- [x] I have run `q restart` and replicated the issue again

### Operating system

macOS 26.3.0 (25D125)

### Expected behaviour

Access to chat.

### Actual behaviour

I have a paid account, and now I get Authentication failed. Your session may have expired..

I have loged out and in again, still same issue.

I also tested to login using AWS account (free version), then it works.

### Steps to reproduce

Yes every time I logon using my gmail account.

### Environment

```yaml
[q-details]
version = "1.28.1"
hash = "fc92565d6f51c1708e92500b2b2bcc4a424f5705"
date = "2026-03-21T05:23:50.031438Z (2d ago)"
variant = "full"

[system-info]
os = "macOS 26.3.0 (25D125)"
chip = "Apple M3 Max"
total-cores = 14
memory = "36.00 GB"
```