You may want to direct your question specifically towards the openhabian community, especially if you are not doing any manual configuration (openHABian hassle-free openHAB Setup).
Confirm that you only have the one zigbee binding installed
bundle:list |grep -i zigbee
You don’t mention adding the openhab account to the tty and dialout groups for the openhab (not openhabian) account, but if zwave is functional then it would be odd if this wasn’t already done.
Fiddle with the Reset Controller option in the coordinator. I remember having difficulty the first time I configured the quickstick, and it may have been this option that got it working. When it is on and the configuration saved, the configuration will immediately be sent to the stick, rather than waiting for the next restart of the binding. If that doesn’t help, delete the coordinator, recreate it, and turn on Reset Controller while configuring.
Enable debug logging for zigbee and post a log
log:set DEBUG org.openhab.binding.zigbee
log:set DEBUG com.zsmartsystems.zigbee