I've noticed that all my Z-wave outlets suddenly stopped to report states. Seems to happen to all of them at about same time end of November, think may be related to 2.2.4 update. I can still control all of them. I did try to remove and add back, run z-wave repair, but still no state reported.
For just added back , no state at all.
I am on C-3 as well. I am missing state only if I remove and add device. For outlet that I did not remove, state just won't change. Sill can control and program status light. Did try hub soft reset, no difference. Unfortunately do not have 2.2.3 backups... To me it looks like something changed with z-wave with 2.2.4.
Were you able to resolve this? I'm having a similar issue with a GE ZW4101... though my status changes in the WebUI if I control from there, it's just on-unit button press updates I'm missing.