SmartThings app vs. Google Assistant

Hello community. I have some Zwave switches that always have a hard time communicating to the Smartthings app, yet when I use Google assistant on my Android phone and speak the command to turn on or off, It generally works 100% of the time. And the Smartthings app will usually not respond showig the new state the switch is in. Since both these are Z-Wave switches they obviously need to go through my Smartthings hub, V2. How is it that part of the process works fine (because Google Assistant always seems to work) but the Smartthings app doesn’t properly function? What am I missing, and are there any troubleshooting steps I might take? Thanks

As far as i am aware google does not wait for a confirmation that the switch state has changed. It just sends on or off