Archived
The pass that answers *what does this node offer* takes a failed resolution to mean it learned nothing about that node. So refusing an unanswerable requirement there made the machine disappear — and every other machine was then told, wrongly, that the two of them shared no private network. A wrong answer about a machine nobody asked about, caused by a fault on a third. The lab found it: one module needing a licence that had not been added yet made two unrelated machines look disconnected. The second pass still refuses it, where the question is actually being asked.