New lighting run problem

Hi Guys,
Could I ask for some advice on a lighting wiring problem I have. I have run a new cable to 5 new led lights, when all was connect the very 1st light worked fine, but as soon as I added another light to it, the leds started flashing and wouldn't work when 2 lights were connected.
I think looking at it now it looks like (from memory) I've come from the power supply to the 1st light and then on to each other light unit and then down to the switch, instead of going to the switch first and then onto the leds

I think I'm missing a switch wire? if that's the case can I run from the switch to any lamp holder or do I need to run to each lamp...

thanks
Tony

 

How do I attach a picture@

 

You know when you ask and then it's there!!!!

 

Okay, switch is wired brown and blue works fine with 1 light on the circuit, from there it goes to a Wago block (each light location) Browns linked and the blues separate for the lamps to be connected to all the way through, haven't removed the CU cover but thought it would be wired right as this was done by the spark who put the unit in. The cable has been in a couple of months with just the 1 light on so he could wire it up in the unit, to give me light while working... Hope this makes sense

 

Defo Not, just cannot work out what I've done wrong, normally pretty good with stuff like this.

 

2 x 1.5 T&E looping in and out starting at the CU and ending at the switch, Ta

 

Thanks all for the responses, I think I was just having one of those days, I had just completely wired the switch wrong, as it was a 2 gang switch I just got myself where I couldn't think straight...

Cheers
T