[Plugin: Posts 2 Posts] After updating to 1.4.1 get_connected doesn't work

I did run 1.4 alpha ( commit c55565a0b0 ) and updated today to 1.4.1. Now it can’t determine direction of the type.

I try to get all the connection through:
$objects = p2p_type( ‘object_to_chain’ )->get_connected( ‘chain’, $args, ‘abstract’ );

Is the code changed? or I’m doing it wrong?

http://wordpress.org/extend/plugins/posts-to-posts/