Domoticz primary and secondary replication

[JohnLines]

I have Raspberry Pi with a Razpberry controller, as a z-wave primary and another Raspberry PI with a z-wave AON Labs USB Z-stick as a secondary.
Both are running Domoticz 2020.2

Some nodes, particularly battery devices, do not seem to replicate Manufacturer Id and Type from Primary to secondary, but mains powered devices, in general, seem to be better.

Both primary and secondary show the Manufacturer, Id and Type of the other as 0

On a send from primary to secondary the logs on the Primary show

2020-06-11 12:40:20.939 Status: OpenZWave: ReplicationSend ControllerCommand - Starting
2020-06-11 12:40:20.940 Status: OpenZWave: Replication to Secondary Controller initiated...
2020-06-11 12:40:20.944 Status: OpenZWave: ReplicationSend ControllerCommand - Waiting
2020-06-11 12:40:25.021 Status: OpenZWave: ReplicationSend ControllerCommand - InProgress
2020-06-11 12:40:25.098 Status: OpenZWave: ReplicationSend ControllerCommand - InProgress
2020-06-11 12:40:28.089 Status: OpenZWave: ReplicationSend ControllerCommand - InProgress
2020-06-11 12:40:29.316 Status: OpenZWave: Node Removed. HomeID: 3850729671, NodeID: 37 (0x25)
2020-06-11 12:40:32.463 Status: OpenZWave: Received timeout notification from HomeID: 3850729671, NodeID: 37 (0x25)
2020-06-11 12:40:35.468 Status: OpenZWave: Received timeout notification from HomeID: 3850729671, NodeID: 37 (0x25)
2020-06-11 12:40:38.472 Status: OpenZWave: Received timeout notification from HomeID: 3850729671, NodeID: 37 (0x25)
2020-06-11 12:40:41.482 Status: OpenZWave: Received timeout notification from HomeID: 3850729671, NodeID: 37 (0x25)
2020-06-11 12:40:44.485 Status: OpenZWave: Received timeout notification from HomeID: 3850729671, NodeID: 37 (0x25)

(node 37 is the secondary)

while the logs on the secondary show

2020-06-11 12:40:04.070 Status: OpenZWave: Receive Configuration initiated...
2020-06-11 12:40:04.071 Status: OpenZWave: ReceiveConfiguration ControllerCommand - Starting
2020-06-11 12:40:07.072 Status: OpenZWave: ControllerCommand - Error - Failed
2020-06-11 12:40:07.072 Error: OpenZWave: Type_Notification, NodeID not found internally!. HomeID: 3850729671, NodeID: 255 (0xff)
2020-06-11 12:40:34.370 Status: ZWave: Stopping Controller command (Timeout!)

I know node ID 255 is the broadcast node, so presumably this should not fail.

Does anyone have a setup which does a z-wave replication from Domoticz primary to Domoticz secondary ?