Shelly Duo RGB GU10 flashing yellow

  • Hello everybody!

    This is my first post here, forgive any mistakes I made, please.

    So I have 18 Shelly Duo RGB on the same circuit. They were all working fine after installation (normal, white light). However when trying to add them to the app (I still have poor wifi there) I tried some stuff and I reset them all (5 times on / off)... all of them started flashing red, as intended. However one of the bulbs started flashing yellow / light greenish. And I can't get rid of the yellow flashing. Multiple other resets did reset all other 17 lamps, but this one just keeps flashing yellow, no matter what.

    Any idea what this means?

    Cheers