Why isn't there a Zigbee Topology and Mesh Data for troubleshooting?

Hi Tony, Since you seem to be one of the most knowledgeable around zigbee, would you have any idea why a simultaneous channel swap between a C4 & a C7, would later (30+days) still affect pairing on the C7, even with devices previously existing on the C7, when they fall off and need re-paired, will not re-pair, I must shutoff the C4. Hubs are separated by about 10 feet.

Unless the C4 is totally off(power cut) nothing will pair to the C7. The current channels are 25 for C7 and 20 for C4, and prior, the channels were reversed.

Is there something about the routing table or firmware that would create a persistent link between devices and the original channel they used to be joined to?

Maybe I did a stupid thing by swapping 2 hubs' channels simultaneously, but it seemed like it should have worked since the channels don't overlap.