Can't control Zwave switch

Anyone else having problems controlling zwave swtiches as of late?

As of about 3 days ago, I lost control one my switches. Tried rebooting the hub and running the repair zwave network utility with no avail.

No response from support at all.

Any ideas?

Using the app, do a replace. That usually works. Another thing to try is turn the breaker off for a few minutes. That also usually works.