Z-Wave JS - nodes not getting beyond NodeInfo

I have been successfully adding nodes around my house, but come up against a problem. To get the nodes paired on the top floor I have had to move my ZME-UZB1 stick and RPi 4 away from their central location up to be close to the top floor light controller nodes. I have found that when I pair these nodes, the pairing gets stuck at the NodeInfo stage. For all but one, I have done a re-interview and the nodes have paired properly. But for Node 95 (a Fibaro Single Switch), I have tried re-interviewing the node 3 times, rebooted the RPi, let the Z wave stick settle down, re-interviewed again. But no change.
The log shows:
2021-05-24 12:15:58.019 INFO ZWAVE: Node 95: interview started
2021-05-24 12:15:58.047 INFO ZWAVE: Success zwave api call refreshInfo { success: true, message: ‘Success zwave api call’, result: undefined }
2021-05-24 12:15:58.071 INFO ZWAVE: Node 95: interview stage PROTOCOLINFO completed
2021-05-24 12:15:58.700 INFO ZWAVE: Node 95: interview stage NODEINFO completed

And the Control Panel shows:

In addition, one of the original nodes downstairs, also a Fibaro Single Switch which was properly paired, has resolutely refused to pair properly, even when I take the UZB/RPi back downstairs and run re-interview.

Has anyone else had this, and has anyone got advice on how to solve this?
Thank you for your help.

If that is a battery operated device, leave it for several hours. When it wakes up the controller will continue its interviewing.

Thank you for your reply. Unfortunately it is not battery operated, it is a powered light switch node.

papasierra did you ever find a solution this as i’m experiencing the same behavior

For example, I just had one device I needed to re-interview that was stuck at node-info. I waited overnight and it completed the interview.

I’ve continued to have problems with different nodes stuck at the nodeinfo stage. Doing a reinterview, often several times, brings all but two back to life. These two have never returned to a working level and I’m thinking I will have to unpair them and start again. For the rest, there always seems to be 2-4 nodes, and not the same ones each time, that have fallen back to nodeinfo.
I am also getting a problem with the whole z wave integration failing every 2-3 days. Solved by rebooting the RPi. I don’t know if the two issues are connected. But both are irritating.

I’ve been having exactly the same problems as mentioned here with a Fibaro Dimmer 2 (FGD212) that was previously working perfectly.

No matter what I tried, I’d always be stuck at “NODEINFO”. I tried inclusion, exclusion, reboots, etc…

What finally seemed to do the trick was to cut the circuit breaker for that particular segment of the house for about an hour, and then turn it back on.

The device reappeared in Home Assistant automagically (granted, a few settings were wiped, without doubt from one of my previous manipulations).

OK so this time I’ve had the same problem with a Fibaro Walli dimmer (FGWDEU-111). (Stuck at NODEINFO). My previous workaround of opening the circuit breaker for a couple hours did not work this time so I was starting to despair.

HOWEVER I realized after a while that the lightbulb behind the dimmer was dead! I’m ashamed not to have checked it before, but changing the lightbulb immediately put my dimmer unit back online on my network. I would have thought that the dimmer could have another state than “dead / unavailable / etc”