Check the console and type bundle:list |grep -i zwave:
You should see something like this:
openhab> bundle:list |grep -i zwave
10 │ Active │ 80 │ 2.2.0.201710012213 │ ZWave Binding
Make sure you only have one active zwave binding.
Also check you openhab.log (or zwave.log if separated) for any errors.
Edit:
If you upgraded from a stable or snapshot zwave binding to the development version of the binding the very first time, you need to delete your things and readd them again. That does not mean you have to exclude and then include your devices from the controller (that is almost never necessary).
More on how to work with the dev version of the binding can be found here:
Read the first couple of posts (from nearly 2000) 