Unable to add Aqara Motion Sensor P1 to ZHA

Hi there,

As the title says, I’m unable to add my two new P1’s to ZHA using my Sonoff dongle. I have several P1’s all of which are up to around one year old.
I have done the following:

Factory reset sensor (hold button and wait)
“Add device” via interface in ZHA integration
(No luck after several retries and factory reset of sensor)
Using install code (QR) and IEEE of Sonoff dongle through the Developer Tools tab and “Zigbee Home Automation: Permit”-service.
No luck either way.
Replacing batteries in both sensors and repeating above. No joy still.

Does any of you have any idea how I might solve this issue?