Help with Tasmota group

Hi, I’m following this tutorial from digiblur’s channel on using tasmota group for my tasmota bulbs to keep them online and not physically switched off.

I have a 3 button switch (no neutral) and button 3 is wired to the smart bulbs (4 LED GU10 as nightlamp).
Button 1 - main lights, button 2 - Fan

On the switch template page, I configured relay 3 pin to output high, and use gpio15 as fake relay 3 pin.

I added all the commands from tasmota devices group page on the switch and all the bulbs

SetOption85
DevGroupName nightlamp
DevGroupShare -1,-1

On the switch, i added extra commands for the relay

SetOption88
DevGroupTie1 0 (to prevent turning on main lights and the nightlamp at the same time)
DevGroupTie3 1 ( i figured this is for button 3 switch?)

Everything seems to work except that i still can’t toggle button 3 to turn on/off the lights.

Is there anything else I’m missing?