So I talked with ST’s Support on Chat today and here’s the dilly:
"It’s generating errors that are indicative of a known error we’re investigating the cause of. It’s causing problems for ZigBee devices running on v1 hubs, we’re investigating currently. With this particular issue, the devices can report states okay, but it’s not receiving commands and we’re getting messages in the live logs. We’re talking with our developers to get this sorted out.
We don’t know just yet. We found a few cases of these errors this morning and we’re currently talking with some engineers and developers."
Hopefully a fix is found soon.