Strange. I wonder if the Z-wave logs show anything interesting when it fails.
If I found the correct Enbrighten unit online, it should have been supported since 2.2.7 was released in May of 2021: Release 2.2.7 Available
This thread has one more idea to try: Enbrighton Z wave plus outlet - #7 by jkudave
With credit to @rlithgow1: "on the device page switch the driver to DEVICE and click save. Click all the delete options on that page. Now switch back to generic z-wave plus outlet and click save, then click configure."
That was suggested to solve a very different problem, but maybe it will help.
