The iso3 code for country Kosovo is set to be "UNK" inside the country dataset, while inside the city dataset it is "XKS".
Therefore, when searching for cities in Kosovo, the result will always be zero as the countries fetching retrieved UNK that will not be found in the following city fetching request.
Consider aligning with the most up-to-date identifier for Kosovo.
Consider writing a script that checks any other divergence for ISO codes.
The iso3 code for country Kosovo is set to be "UNK" inside the country dataset, while inside the city dataset it is "XKS". Therefore, when searching for cities in Kosovo, the result will always be zero as the countries fetching retrieved UNK that will not be found in the following city fetching request.
Consider aligning with the most up-to-date identifier for Kosovo.
Consider writing a script that checks any other divergence for ISO codes.