I know this is old but I ran across this issue, adding true to the end of the hook resolved the issue. In this instance wp_remove_object_terms($postID, 'remove_this_term', 'custom_taxonomy', true);
will run the hook.
I know this is old but I ran across this issue, adding true to the end of the hook resolved the issue. In this instance wp_remove_object_terms($postID, 'remove_this_term', 'custom_taxonomy', true);
will run the hook.