I have two very old groups - they've been around for a long time.
One called Kitchen Sink - one called Kitchen.
The Kitchen Sink, works perfectly. It has a screen as seen below which has two differences as highlighted:
Interesting thought. I checked but my Alexa world has no rooms setup.
I resolved my problem by changing what 'Kitchen' turned off/on-instead of the bulbs I set it to turn off the subgroups. While this worked, it doesn't explain the difference in the Rules.
I wonder if it was just the act of making a modification and re-saving the rule that resolved the issue... almost like there was some corruption in the rule that got resolved when you saved it again.
That group was made prior to the introduction of the separate bulb/dimmer/switch drivers to eliminate light groups showing up in Alexa with all of the attributes when they might only support “switch” commands.
BTW, I wouldn’t use metering if you’re using Zigbee group messaging. ZGM should eliminate the need for that.
Crap.
Upon further review, all of my groups are broken with this 'null' thing. The only way I can see to fix it is to recreate the groups from scratch. I recreated the 3 groups I mentioned and all of them came back nicely but that was a ton of work.
Now I have 18 more groups to rebuild -crap.
Thanks for the thought on Group Messaging. When metering was discovered to solve things I spent hours going through and updating - and a lot of things get better. doing all that work again to enable ZGM - I'll pass. There's also that trust issue (see OP).
Metering can solve things for z-wave devices or scenes where each device needs a separate set of commands. You already have zgm enabled. I don’t know that metering is even used.
I have old scenes with the null device and they work fine. Maybe you have database corruption?
shrugs - I don't do zwave - they never worked right for me. I don't do Scenes either-just couldn't make sense of them... so I just do the basics.
Regarding metering not being used, well. that would be news to me but wouldn't surprise me either. I can see the popcorn effect so I think it's still viable.
As to 'Null' device - I'm glad yours worked fine. mine didn't. I'm rebuilding every group now by hand one at a time. I'm in the g's.
You shouldn’t have to use metering for a group of 2 devices. I have groups of 6 with no popcorning. Have you tried backing up the database to your computer and then doing a soft reset and restore in case it’s a corrupt database issue?
