Epw works with every other, except with cumulative sky matrix in order to generate radiation map

Hi @anubhv666, welcome to the forum.

Can you share the weather file or a link to the weather file?

Also you tagged the question under honeybee[+] by mistake. See here for good practices about posting your question: https://discourse.ladybug.tools/faq

https://energyplus.net/weather-location/europe_wmo_region_6/FIN/FIN_Tampere.029440_IWEC

I doubt it’s the epw file because it works fine with everything else except this particular function. And thank you for the response.