Could indeed be that.
In my case, it isn’t, because I only have two physical devices on my SmartThings network at this point: one motion sensor and one smart bulb. They’re in the guestroom, and opening the door should cause the light come on. This is been working pretty well for about a year. I’m not using any custom code, and I use a smart lights automation for this. I don’t have a hue bridge on my network.
Since the Thursday update, there is a very noticeable delay. It’s gone from under a second to 9 or 10 seconds. And we have started to see some false positives reported . The log show none on Monday, Tuesday, or Wednesday. Beginning Thursday after the hub update there are several every day.
So I’m not sure what’s going on, but I am sure it’s not hue bridge interference since there’s no hue bridge on the account. 