See http://mod-buildcraft.com/forums/index.php?topic=543.msg5834#msg5834 - in particular gates that looses settings or wire that doesn't connect properly.

After an initial look on this, item id translation has been a complete oversight on pipe contents :-( Back to work.

Ok - that should fix at least the issue with gates, as well as many many things along the way. I'm keeping this one open to experiment with wire connection issues.

Can't reproduce the connection issue. Let's assume it's fixed. Closing.