I'm using this plugin on a Multisite installation with Jigoshop 1.2.3 ( that creates post_type product, and taxonomyproduct-category ).
When I sync a product with some hierarchical product-category, the process is ok, but the taxonomies don`t appear in spite of they did sync to the database. It seems that is a cache problem.
I did solve this introducing
wp_cache_flush() on ThreeWP_Broadcast.php:1533.
Someone can check if this is the better way to solve this issue?