Hello,

No not easy to find what makes it happend, tried using logging but still not easy. So i replaced your code with the below and that seems to fixed it:

if ( function_exists( 'woodmart_is_woo_ajax' ) && woodmart_is_woo_ajax() ) {
	do_action( 'woodmart_main_loop' );
	die();
}

And i have not noticed any problems because of that.

Brgds
Rune