Binding doesn't work after OTA of E1745, "groupID 0"

[limes007]

I have two IKEA E1745 motion sensors grouped with one IKEA LED1836G9. They worked properly, but an OTA update became available for the motion sensors. I thought it would be a good idea to update them.

I updated one E1745 from version 537011747 to version 604241925. The OTA update went well, but the light did not switch on as before. I checked the group binding; it was still available, but I remembered I had to renew this before to get it working again. I renewed the group binding, but there was no change. I deleted and recreated the group binding, but there was still no change.

So I checked the documentation and found this:

The E1745 can be bound to groups. Although it is not possible to set the groupID at which the E1745 sends messages. But you > can watch out in the log files for following debug messages:

debug Received Zigbee message from 'device', type 'commandOnWithTimedOff', cluster 'genOnOff', data '{"ctrlbits":0,"offwaittime":0,"ontime":600}' from endpoint 1 with groupID 123

Now you can create a group with a groupID of 123 and add your devices that should receive the message.

I checked the logs and for the updated E1745 it logs:
z2m: Received Zigbee message from 'MS1', type 'commandOnWithTimedOff', cluster 'genOnOff', data '{"ctrlbits":0,"offwaittime":0,"ontime":1800}' from endpoint 1 with groupID 0

For the other E1745 without update it logs:
z2m: Received Zigbee message from 'MS2', type 'commandOnWithTimedOff', cluster 'genOnOff', data '{"ctrlbits":0,"offwaittime":0,"ontime":1800}' from endpoint 1 with groupID 3

3 is indeed the id of the group with the IKEA bulb. But I cannot remember, that I assigned them manually.

I tried to create a group with ID 0, but I suspected that 0 might be a special number and wouldn't work that way. I could not create the group, assign the bulb and bind the E1745 via the Z2M UI. However, I managed to do so via MQTT and by modifying the database. However, this configuration also didn't work. So I removed all this again.

So the question is, how can I change the group ID of the E1745 from 0 to something else?

I completely removed it from Z2M and repaired it (someone recommended this), but the group ID is always 0.

The good thing is that the E1745 still works perfectly with the coordinator and my Home Assistant. I now have an automation in HA to turn the light on and off. However, I had this setup before, and the direct binding was much more reliable than this automation. I would prefer to bind it directly to the bulb as before.

Any ideas how to change the group ID or do the binding?