White Series Dimmer (VTM31-SN) - Bug/Enhancement Thread

@EricM_Inovelli I installed 50 of the White Series Dimmers and they are all on firmware 1.0.5 and all with neutral wiring. I am also experiencing the issues in this thread:

  • Sporadic flickering: separate thread. It does appear to occur when there is likely Matter chatter, but this is hard to confirm since spying on Thread/Matter is not trivial.
  • Switch crash/halt: every day, one switch becomes unresponsive. It appears as “No response” in Apple Home, paddle buttons do not do anything, load stays on or off depending on whatever it was at the time that the switch crashes. All 50 have done this at one time or another. No apparent pattern to predict which one will become unresponsive.
  • “No response”: Switches sporadically appear as “No response” in Apple Home. This is different from the above, because the physical paddle buttons continue to work. Sometimes they reestablish communication hours later, sometimes they don’t. Pulling the air gap seems to help reestablish the connection about 50% of the time. The other 50% of the time, I must check back in a few hours to see that the switch is back online.
  • Sporadically turn on and off: this is the most rare event, but happens at least once every other week. All of the lights on the switch will turn on and off every second. The switch LED strip remains illuminated, but all three physical buttons (paddle and config) do not have any effect. Pulling the air gap works and resolves the issue.

I only had some of the switches running with v1.0.0 for a few weeks before the 1.0.5 release. I do not remember these issues or maybe I did not have enough time to witness them. I have closely followed this thread and others. I have factory reset and configured every switch at least once after they updated to 1.0.5. This had no effect in preventing these issues, even temporarily. In other words, after factory resetting a switch, it still exhibit one of these issues the same day or later in the week.

Update 2025-01-23
Including more information about the environment:

  • 5x AppleTVs: I disabled automatic selection and manually selected a wired (3rd gen A2843) AppleTV as the controller in Apple Home.
  • 3x Eero 6E Pro: I disabled thread through the Eero app just to eliminate them as a variable.
  • 3x Eve thread/matter light switches: These never exhibit any of the issues—they are always available in Apple Home. I only have them wired in single poll, non-dimmable locations. About 10 of the 50 Inovelli White Series switches are also single poll just like the Eve switches. These 10 single poll exhibit the issues described above just like the other 40 in 3/4-poll wiring—no difference in terms of frequency or severity of issues occurring.
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