I also have some anomalies since 4.30 and some new ones since 4.31!
Some scenes don’t finish… for example my toaster:
when I manually turn on its smart plug, it should turn a light green, wait 75s. and finally turn off the toaster and restore the light to its state before shutdown…
Now the scene starts, but there is no turn-off; my toasts (or my son’s) are charred and the light is still green!
Another bug observed yesterday: a strange dependency whose behavior I haven’t understood was created between the smart plug of my projector and two bulbs….
The Zigbee2mqtt documentation mentions this error:
MAC_CHANNEL_ACCESS_FAILURE: this happens when the wireless spectrum is too occupied. Mostly happens when a microwave is on or when there are WiFi networks on the same channel. See Reduce Wifi interference by changing the Zigbee channel how to fix this.
There are probably sources of interference at your place that are disrupting the Zigbee network.