Zooz Z-Wave Stick Stopped Working After Update to HassOS 4.11

Hi everyone,

I’m looking for some help. I updated my HassOS to 4.11 today, and it seems to have broken my Z-wave network. I cannot get it to start. I have a Zooz S2 Z-Wave stick plugged in, along with a conbee2 stick. Both have been working great up until this update.
I made no other changes, but my Z-wave stick just will not show up anymore.
edit to add: I am running on a Raspberry Pi 3b

After searching the forums, I thought perhaps the device ID had changed and was no longer the same as my configuration.yaml, however I discovered that the stick just does not show up at all (despite being plugged in, and showing a blue light).

I’m hoping someone can help me figure this out. My log file is attached here:

2020-07-07 15:31:37.990 Always, OpenZwave Version 1.4.3469 Starting Up
2020-07-07 15:31:47.616 Info, Setting Up Provided Network Key for Secure Communications
2020-07-07 15:31:47.616 Warning, Failed - Network Key Not Set
2020-07-07 15:31:47.616 Info, mgr,     Added driver for controller /dev/ttyACM0
2020-07-07 15:31:47.616 Info,   Opening controller /dev/ttyACM0
2020-07-07 15:31:47.617 Info, Trying to open serial port /dev/ttyACM0 (attempt 1)
2020-07-07 15:31:47.619 Info, Serial port /dev/ttyACM0 opened (attempt 1)
2020-07-07 15:31:47.620 Detail, contrlr, Queuing (Command) FUNC_ID_ZW_GET_VERSION: 0x01, 0x03, 0x00, 0x15, 0xe9
2020-07-07 15:31:47.620 Detail, contrlr, Queuing (Command) FUNC_ID_ZW_MEMORY_GET_ID: 0x01, 0x03, 0x00, 0x20, 0xdc
2020-07-07 15:31:47.620 Detail, contrlr, Queuing (Command) FUNC_ID_ZW_GET_CONTROLLER_CAPABILITIES: 0x01, 0x03, 0x00, 0x05, 0xf9
2020-07-07 15:31:47.620 Detail, contrlr, Queuing (Command) FUNC_ID_SERIAL_API_GET_CAPABILITIES: 0x01, 0x03, 0x00, 0x07, 0xfb
2020-07-07 15:31:47.620 Detail, contrlr, Queuing (Command) FUNC_ID_ZW_GET_SUC_NODE_ID: 0x01, 0x03, 0x00, 0x56, 0xaa
2020-07-07 15:31:47.620 Detail,
2020-07-07 15:31:47.620 Info, contrlr, Sending (Command) message (Callback ID=0x00, Expected Reply=0x15) - FUNC_ID_ZW_GET_VERSION: 0x01, 0x03, 0x00, 0x15, 0xe9
2020-07-07 15:31:47.950 Warning, WARNING: Out of frame flow! (0xc0).  Sending NAK.
2020-07-07 15:31:48.950 Error, contrlr, ERROR: Dropping command, expected response not received after 1 attempt(s)
2020-07-07 15:31:48.950 Detail, contrlr, Removing current message
2020-07-07 15:31:48.950 Detail, contrlr, Notification: Notification - TimeOut
2020-07-07 15:31:48.953 Detail,
2020-07-07 15:31:48.953 Info, contrlr, Sending (Command) message (Callback ID=0x00, Expected Reply=0x20) - FUNC_ID_ZW_MEMORY_GET_ID: 0x01, 0x03, 0x00, 0x20, 0xdc
2020-07-07 15:31:48.998 Warning, WARNING: Out of frame flow! (0xc0).  Sending NAK.
2020-07-07 15:31:49.999 Error, contrlr, ERROR: Dropping command, expected response not received after 1 attempt(s)
2020-07-07 15:31:49.999 Detail, contrlr, Removing current message
2020-07-07 15:31:49.999 Detail, contrlr, Notification: Notification - TimeOut
2020-07-07 15:31:50.004 Detail,
2020-07-07 15:31:50.004 Info, contrlr, Sending (Command) message (Callback ID=0x00, Expected Reply=0x05) - FUNC_ID_ZW_GET_CONTROLLER_CAPABILITIES: 0x01, 0x03, 0x00, 0x05, 0xf9
2020-07-07 15:31:50.049 Warning, WARNING: Out of frame flow! (0xc0).  Sending NAK.
2020-07-07 15:31:50.050 Warning, WARNING: Out of frame flow! (0xc0).  Sending NAK.
2020-07-07 15:31:51.050 Error, contrlr, ERROR: Dropping command, expected response not received after 1 attempt(s)
2020-07-07 15:31:51.050 Detail, contrlr, Removing current message
2020-07-07 15:31:51.050 Detail, contrlr, Notification: Notification - TimeOut
2020-07-07 15:31:51.053 Detail,
2020-07-07 15:31:51.053 Info, contrlr, Sending (Command) message (Callback ID=0x00, Expected Reply=0x07) - FUNC_ID_SERIAL_API_GET_CAPABILITIES: 0x01, 0x03, 0x00, 0x07, 0xfb
2020-07-07 15:31:51.060 Warning, WARNING: Out of frame flow! (0xc0).  Sending NAK.
2020-07-07 15:31:51.062 Warning, WARNING: Out of frame flow! (0xc0).  Sending NAK.

(continues repeating)

Thanks for any and all assistance!

I’ll also mention I was running Home Assistant 0.112.0 and HassOS 4.10 prior. My flow today was updating HassOS to 4.11 (at this reboot I noticed that Z-Wave wasn’t loading), then continued with an update from 0.112.0 to 0.112.3. Z-wave still down.

My impatience got the better of me. Did a full reset of my HA and started fresh, adding Z-Wave integration my entire z-wave network of devices were picked up immediately and everything added into the new instance with no fuss.
Gotta love that!