I just saw that HA prompted me to upgrade my bulbs to 3.6.196, which sounds great! But somehow, nothing happens after clicking. I also tried directly using the update button in the Matter server web UI and see it going to 99% and then back to 0%. After a while I can click the update button again and can repeat.
Am I doing something wrong? Did anyone manage to actually update?
Matter server 6.4.1, otbr 2.9.1, core 2024.8.1
Just managed to update, somehow it worked now for the closest one of the 3 bulbs. The others still seem to have a problem.
Got it to work for all of them after restarting the matter server and screwing out/in one of the bulbs. Great stuff, even if not totally bulletproof yet.
There are two numbers which get processed from the device: the update progress and the update state. It sounds like the progress went back to 0 but the state was still not idle. It could be that this is related to how exactly state updates get pushed by Nanoleaf devices. I’d guess that this devices actually got updated on the first attempt already, and the restart then caused a reinterview. But it is hard to tell at this point.
Do you still have logs around of the update attempts? Ideally I’d need debug logs of the Matter Server and Core (for the Matter component), I guess at this point it is a bit too late 
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Do you remember if all three devices more or less behaved the same way (went from 99 back to 0, but after restart were fine then?). The problem is all my Nanoleaf are already updated 
Thanks a lot for your remarks, I don’t really have this around anymore, but will try again with some more Nanoleafs in the future.