Upgraded ikea switch, now no binding to group so automation issues

You mean binding to a group, well not really because as Koekk mentioned itself

Binding

The binding functionallity of this remote varies per firmware version:

  • below 2.3.75: suppports binding to groups only. It can only be bound to 1 group at a time. By default this remote is bound to the default bind group which you first have to unbind it from. This can be done by sending to zigbee2mqtt/bridge/request/device/unbind payload {"from": "DEVICE_FRIENDLY_NAME", "to": "default_bind_group"}. Wake up the device right before sending the commands by pressing a button on it.
  • 2.3.075 and greater: supports binding to devices only

After the upgrade I removed the group (was not working anymore) added the lightbulbs and now in my zigbee2mqtt logs I don't see the action anymore, even with having an bind to the coordinator.

Are you proposing to completly remove them and bind them again to my network ?