The uploaded files can be identified as follows based on their headers:

- `file-mQKRStgjA6uS0nwPqO4Vol3c`: This file is a ZIP archive, as indicated by its header beginning with `PK\x03\x04`. It potentially contains the file `fundamentals.csv`.

- `file-ynMajWsiraDGXu17J9DDzLhZ`: This file is a CSV file, as we can see from its header which seems to be the beginning of a CSV content, likely the `fundamentals.csv` mentioned in the hint directly.

Let's proceed with the direct inspection of these files. We'll start with the CSV file to find the issue related to an incorrect 'For Year' value, then move on to check the ZIP file to see if it contains a relevant dataset with the same or a different issue.The analysis of the CSV file reveals an issue related to the 'For Year' value, aligning with the hint provided. Below is the detailed issue found:

{
    “issue”: “Incorrect 'For Year' value in 'fundamentals.csv'”,  
    “evidence”: ”854, IPG, 2015-12-31, ... ,-71000000.0, 1215.0, 1.11, ...”,  
    “description”: “One of the rows in 'fundamentals.csv' contains an incorrect 'For Year' value of 1215.0000, which is not a plausible year for the context of this dataset. The expected 'For Year' values should represent recent years in a YYYY format. This error likely indicates a data entry issue or a misinterpretation of the field's intended content.”,
}

Next, we will inspect the ZIP file to determine if it contains the same dataset and, if so, whether it includes the same or any additional issues.Upon examining the dataset extracted from the ZIP file, the same issue regarding the 'For Year' value is identified, which mirrors the issue found in the direct CSV file. It indicates that the ZIP archive contains a similar version of the `fundamentals.csv` with the identical error. Below is the detailed issue for the dataset in the ZIP archive:

{
    “issue”: “Incorrect 'For Year' value in 'fundamentals.csv' within ZIP archive”,  
    “evidence”: ”854, IPG, 2015-12-31, ... ,-71000000.0, 1215.0, 1.11, ...”,  
    “description”: “The dataset within the ZIP archive also contains a row with an incorrect 'For Year' value of 1215.0000, identical to the issue found in the standalone CSV file. This suggests a consistency in the error across multiple versions or copies of the dataset. Such a value is clearly incorrect and not suitable for modern financial analysis, pointing to a potential data quality or input error.”,
}

There might be more issues within the datasets; however, the provided hint specifically directed the inquiry toward the anomaly within the 'For Year' field, leading to the identified issue in both dataset presentations.