You divided the switches (marked the triangles) wrongly.
The 'loop' terminal is just a spare for terminating the Neutrals if you have them at the switch.
It is not part of nor connected to any of the switches.
This is like for like.On the triple switch
L = com
L1 = 1 way
L2 = 2 way
There appear to be two different lights here.
How to separate the the hall light from the outside light;-
TURN OFF ALL OF THE POWER AND CHECK THE POWER IS COMPLETELY OFF.
At the light with the white round base fixed to the ceiling (the one with the single yellow wire on it's own).
Remove the bunch of twisted brown wires from the connector block. This means only the one red and one blue remain in the connector.
Put the bunch of brown wires into the connector with the single yellow wire. So this connector has the yellow and the bunch of browns.
ive actually removed the ceiling rose as ive fitted a new light.
there is no yellow wire. Thats an earth to light. There is Also a pair of earth linked. Then 2 blacks to lights neutral, 1 black to lights live, then 3 red joined.
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