I just upgraded my NUC image to 3.13 (0.108.5) and when it restarted, I’d lost access to all of my Xiaomi Zigbee plugs configured as lights. On checking, I saw that the deCONZ add-on was not starting and in fact, would not start with the Conbee II programmed with /dev/serial/by-id/usb-dresden_elektronik_xxx (as previously configured). Changing this path to ttyACM0 allowed the add-on to detect the Conbee II and start, but it would not connect to the firmware and no Zigbee channel was allocated to the device.
I restarted Home Assistant several times and rebooted the hardware twice all to no avail.
Remembering I’d had issues before, I physically swapped over the two USB devices connected to my NUC (Conbee and Aeon Z-Wave stick) and then rebooted the hardware and now deCONZ has started normally with /dev/serial/by-id/usb-dresden_elektronik_xxx configured as before. Go figure.