Hue Zigbee sensor not detecting motion

I’ve had a Philips Hue Outdoor Zigbee motion sensor working fine on ZHA for 12 months.
Last night it failed to detect motion.
I have done all the usual things - change batteries, re-add the device.
It is detecting and reporting light and temperature levels, but not detecting motion.
The log shows comms with the device. I have forced it onto a different repeater device.
It accepts the command to identify itself (which works) and the message to switch on and off the flash the LED when motion is detected, but, it simply refuses to detect (and report) motion. The LED isn’t flashing but works. Neither the Occupancy nor the Opening sensor changes.

I suspect it has gone faulty, but, if anyone has experienced this and found a fix, I’d love to know. Many thanks.

A silly suggestion, but have you cleaned it? Outdoor sensors get all kinds of muck in them - dust, spiders’ webs… Just a thought. :grin:

Having a simialr issue. Just added it to my hub and it just always shows as Clear. Identifies correctly etc…but not detecting motion :frowning: