Fibaro devices unresponsive

I have 20+ Fibaro devices controlling lights - some dimmers, some relays. Following a migration to 2021.1 on a new Mac Mini M1, most but not all no longer respond.

It seems to be the more recently added devices still work.
Some appear to be sending status updates. Some not.
I can resync (Define & Sync) working devices and see a full settings report. But not the devices that don't work; they just time out.
I've tried deleting and adding devices, but these end up not configured properly and don't respond to anything.

I really don't want to start again. Any ideas?

Already tried to run a network optimization?

Thanks for your reply @MarkoGT.

I have, but didn't look at the log in detail.

I get some devices found, some not, but the found devices don't all respond to commands.
I also have something going on losing contact with the controller; not sure what this is.
Any help gladly received.

Optimizing - started network optimization for nodes: 19, 31, 40, 10, 11, 12, 13, 14, 15, 16, 17, 22, 23, 24, 25, 28, 30, 32, 34, 38, 39, 42, 43
Z-Wave Optimizing - starting "019 - WC ground - Motion Sensor"
Z-Wave Optimizing - ping failed (could be asleep)
Z-Wave Optimizing - skipped "019 - WC ground - Motion Sensor" (unreachable)
Z-Wave Optimizing - starting "031 - WC first - Motion Sensor"
Z-Wave Optimizing - ping failed (could be asleep)
Z-Wave Optimizing - skipped "031 - WC first - Motion Sensor" (unreachable)
Z-Wave Optimizing - starting "040 - Bathroom - Motion Sensor"
Z-Wave Optimizing - ping failed (could be asleep)
Z-Wave Optimizing - skipped "040 - Bathroom - Motion Sensor" (unreachable)
Z-Wave Optimizing - starting "010 - Dining - Dimmable Load"
Z-Wave Optimizing - ping timeout
Z-Wave Optimizing - skipped "010 - Dining - Dimmable Load" (unreachable)
Z-Wave Optimizing - starting "011 - Library landing - Dimmable Load"
Z-Wave Optimizing - ping timeout
Z-Wave Optimizing - skipped "011 - Library landing - Dimmable Load" (unreachable)
Schedule HW secondary (weekends) (delayed action)
Z-Wave Error no ack/nak/busy reply (010) for sendPingZwaveCommand (re-sending)
Z-Wave Error send sendPingZwaveCommand failed after 9 attempts
Z-Wave Error restarting serial connection in 5.0 seconds
Interface Failure lost connection with interface
Z-Wave Error send getInterfaceFeatures failed after 9 attempts
Z-Wave Error restarting serial connection in 5.0 seconds
Interface Failure lost connection with interface
Z-Wave connected to Z-Stick Gen5+ (ZW090) interface on /dev/cu.usbmodem2201 (firmware 1.00, SDK unknown)
Z-Wave found module included in controller with no matching device (missing or disabled): 021 - Mulitlevel Switch
Z-Wave found module included in controller with no matching device (missing or disabled): 026 - Dimmable Power Switch
Z-Wave Optimizing - starting "012 - Library - Dimmable Load"
Z-Wave Optimizing - ping completed in 98 ms
...
Z-Wave Error Optimizing - update failed: "010 - Dining - Dimmable Load"
Z-Wave Error Optimizing - update failed: "011 - Library landing - Dimmable Load"
Z-Wave Error Optimizing - update failed: "016 - Bedroom - Dimmable Load"
Z-Wave Error Optimizing - update failed: "042 - Attic - Binary IN1"
Z-Wave Error Optimizing - update failed: "043 - Fakro roof window"
Z-Wave Error no ack/nak/busy reply (042) for sendPingZwaveCommand (re-sending)
Z-Wave Error send sendPingZwaveCommand failed after 9 attempts
Z-Wave Error restarting serial connection in 5.0 seconds
Interface Failure lost connection with interface
Z-Wave Error send getHomeID failed after 9 attempts
Z-Wave Error restarting serial connection in 5.0 seconds
Interface Failure lost connection with interface
Z-Wave connected to Z-Stick Gen5+ (ZW090) interface on /dev/cu.usbmodem2201 (firmware 1.00, SDK unknown)
Z-Wave found module included in controller with no matching device (missing or disabled): 021 - Mulitlevel Switch
Z-Wave found module included in controller with no matching device (missing or disabled): 026 - Dimmable Power Switch
Z-Wave Error encrypted command received from node ID 040 has invalid CBC-MAC value (ignoring)
Z-Wave Error encrypted command received from node ID 031 has invalid CBC-MAC value (ignoring)


Indigo seems then to have given up!

[matt (support)]

This looks like Z-Stick controller issues (locking up or temporarily stopping communication with Indigo), or possible a USB conflict. Try different USB ports, including any USB hubs you have. You might also have to factory reset the controller (which unfortunately can be a pain because you'll have to re-include and re-sync all of your devices). If that doesn't help, your Z-Stick could be marginal. The other possibility is there is some type of Z-Wave network interference or a bad module on the network causing an issue, which result in the Z-Stick getting into these bad states.