Question About Errors of Psychometric Chart Generation in Ladybug

Dear Chris,

Hello. I hope you are very well. I have imported an EPW file into Ladybug (the latest version) and it does not proceed to generate the Psychometric chart (null error). I tried with another epw file and it worked. The current EPW file we have created does not have the data of Sky Cover. Could this be the reason why the psychometric gets errors while being generated?

Thank you very much, looking forward to hearing from you

Best

Is this with version 1.2.0 of the LBT plugin?

A sample file and a screenshot would also be helpful.