The above was differences in boot logs to see if I could spot any setup changes.
While running and pressing the switches I get
t1….(here I only pressed once because nothing happens to the relay)
[16:06:43][D][binary_sensor:036]: 'Button': Sending state ON
[16:06:43][D][binary_sensor:036]: 'Button': Sending state OFF
t4….(this is me pressing twice to turn the relay off and then on)
[16:04:22][D][binary_sensor:036]: 'Button': Sending state ON
[16:04:22][D][binary_sensor:036]: 'Button': Sending state OFF
[16:04:22][D][switch:020]: 'Mains Sw t4' Toggling OFF.
[16:04:22][D][switch:055]: 'Mains Sw t4': Sending state OFF
[16:04:22][D][light:036]: 'led' Setting:
[16:04:22][D][light:047]: State: OFF
[16:04:25][D][number:012]: 'Power Calibration Factor': Sending state 0.133000
[16:04:26][D][binary_sensor:036]: 'Button': Sending state ON
[16:04:27][D][binary_sensor:036]: 'Button': Sending state OFF
[16:04:27][D][switch:020]: 'Mains Sw t4' Toggling ON.
[16:04:27][D][switch:055]: 'Mains Sw t4': Sending state ON
[16:04:27][D][light:036]: 'led' Setting:
[16:04:27][D][light:047]: State: ON
So that reflects what I see. T4 is clearly switching the relay when the button is pressed yet as far as I am aware there are no live automations or equivelant in active in HA and it feels like its got something set internally to the LB device cause it to react directly..