They will fight for the same hardware using the same drivers, and flip/flop without you realizing it leaving you say WTF… (ask me how ?I know…)
I’m not certain the process I used to fix this, but in the end I suggest removing zwave add-on and using the zwave js add-on. either will preform similar, bit that one give you more buttons to push. If you do not like buttons to push, keep the zwave one. also if you click the box on the integration set-up, it will load the zwave add-on for you if you want it or not.