Hi @saikatdas, looks like there already is an open issue for this on GitHub and Jon is currently waiting for feedback on another forum thread around this: Some Cortex Nodes are not running jobs - #8 by Jon
So, you might want to follow the existing threads. I am not familiar with the EML file structure nor am I a user of Cortex/TheHive so will unfortunately not be able to provide much help with building a workaround here 