Seems that broken pipe's information is not being cleared.
Satellites are the easiest to show this with. Get a pipe, set its ID, then some time later, break the pipe and replace it, and the broken Satellite ID can't be re-used.
Also seems to be affecting other pipes -- crafting not forgetting requests when broken (serious PITA when servers restart), and such.

Could you post a full FML log and a list of all mods involved?