Based on the provided hint, I have identified the following potential issue in the uploaded files:

1. **File:** `README.md`
   - **Issue:** Unreachable email address
   - **Evidence:** "Diganta Misra (diganta.misra@wandb.com)"
   - **Description:** The email address "diganta.misra@wandb.com" listed for one of the authors might be unreachable or invalid if not correctly maintained or if there is a typo. It's crucial to verify that the provided email address is correct and currently active for proper communication.

2. **File:** `README.md`
   - **Issue:** Unreachable email address
   - **Evidence:** "Mukund Varma T (mukundvarmat@gmail.com)"
   - **Description:** The email address "mukundvarmat@gmail.com" listed for another author should also be checked for validity to ensure it is reachable. This is important for correspondence related to the dataset or research.

Here is the structured issue format based on these findings:

```json
[
    {
        "issue": "Unreachable email address",
        "evidence": "Diganta Misra (diganta.misra@wandb.com)",
        "description": "The email address 'diganta.misra@wandb.com' listed for one of the authors might be unreachable or invalid if not correctly maintained or if there is a typo. It's crucial to verify that the provided email address is correct and currently active for proper communication."
    },
    {
        "issue": "Unreachable email address",
        "evidence": "Mukund Varma T (mukundvarmat@gmail.com)",
        "description": "The email address 'mukundvarmat@gmail.com' listed for another author should also be checked for validity to ensure it is reachable. This is important for correspondence related to the dataset or research."
    }
]
```

These issues should be reviewed and the email addresses should be verified to ensure they are correct and operational.