The dataset appears to be a collection of player data, potentially from a version of the FIFA video game series, given the context of columns and data types. Columns include player attributes such as 'ID', 'Name', 'Age', 'Nationality', 'Club', 'Overall', 'Potential', and 'source', among others. There are also detailed statistics pertaining to player skills and abilities.

To address the provided hint regarding inconsistencies in the 'age' and 'source' fields for "B. Yılmaz", let's first isolate the records referring to this specific player and then inspect the progression of these fields.Based on the extracted data for "B. Yılmaz" across different 'source' values (indicating the game version), we can observe potential inconsistencies in the progression of 'age' and 'source' fields:

1. **Age Inconsistency:**
   - The age of "B. Yılmaz" decreases between FIFA19 and FIFA20 (from 30 to 18), followed by an increase from FIFA20 to FIFA21 (from 18 to 33), which seems highly unlikely given the progression through sequential game versions and suggests incorrect data.

2. **Source Progression:**
   - The 'source' field, which likely indicates the version of the FIFA data (FIFA17, FIFA18, FIFA19, FIFA20, FIFA21), does not correspond to a logical progression of age. For instance, "B. Yılmaz" appears younger in later editions (FIFA20 and FIFA19) but then older again in FIFA21, which indicates data inconsistency or potential data entry errors.

**Identified Issues:**

1. 
```json
{
    "issue": "Age regression and progression inconsistency for 'B. Yılmaz'",
    "evidence": "FIFA19: B. Yılmaz, Age 30 -> FIFA20: B. Yılmaz, Age 18 -> FIFA21: B. Yılmaz, Age 33",
    "description": "The age of 'B. Yılmaz' inaccurately regresses from 30 (FIFA19) to 18 (FIFA20) and then progresses to 33 (FIFA21), demonstrating an inconsistency in age data across sequencial game versions."
}
```

2.
```json
{
    "issue": "Multiple entries with inconsistent age and source for 'B. Yılmaz'",
    "evidence": "FIFA19 has 'B. Yılmaz' aged 19, 28, 30, and FIFA20 has 'B. Yılmaz' aged 18, then FIFA21 ages to 31, 33.",
    "description": "There are multiple inconsistent entries for 'B. Yılmaz' under the same 'source' tags (FIFA19 and FIFA20), indicating potential errors in data entry or duplications of different individuals under the same name."
}
```

These issues illustrate inconsistencies and potential errors in the dataset's age and source information for the player "B. Yılmaz", which could significantly affect the analysis and reliability of the data.