A small clarification:
When I manipulate the Switches on the [Zigbee2MQTT] interface, all functions work, and all status returns on the Gladys dashboard are correct.
So the problem:
When you manipulate the L1 switch on Gladys, the L1 lamp turns on and the status return on [Zigbee2MQTT] is OK.
When you manipulate the L2 switch on Gladys, the switch returns to the Off position and sends the L1 button to ON, the L1 lamp turns on, and the status return [Zigbee2MQTT] acts on L1.
When you act on the Interlock switch on Gladys, it returns to Off and sends the L1 button to ON, L1 turns on, and the status return [Zigbee2MQTT] acts on L1.
Here if it can help 