If any body is still have issues, this forum referenced doing the z-wave repair and it worked for me. before that, all my ZigBee lights weren’t responding for past 2 days now. Leaving the hub unplugged for 30min was a temporary fix, but went back to not responding. After doing the z-wave repair yesterday, all is working again!
zwave repair: Tap on the Devices tab, locate and open your hub, click on the 3 dots in the upper right of the screen, choose z-wave utilities