I've done this before, but maybe because I'm replacing a ceiling fan with a pendant light the wiring is different.
I have 3 brown wires, with one live 1 Earth (No neutral wire.) This is the end of the loop. Nothing I can find is dependent on this.
When the switch is on, the power L going to the pendant is 240. When the switch is off there is no power.
I'm just a bit stumped:(
Artistic impression of my set up that's not working