Hi not sure of your new sw. never seen a 16A 2way light sw. b4!
Any way key is comms., treat each sw1/2 seperately;
forget top & bottom rows and look at each sw in turn, both will have a comm. plus L1 & L2.
Your second sw. is definately wired wrongly! L1 & L2 will have 2 wires in each , the common will only have 1 wire, normal practice would be ;
red + red (one from twin +1 from 3 core) in say L1
Blue + black (one from each2,3 core) in L2, yellow in com. other end of sw. opposite L1,L2.
You can confirm which is com by looking @ other switch operating same light, ie whatever colour is in com. @ other end must be same in your sw.,if not yellow(ie red then swap red/yel at first sw to match.
Likewise for other sw.in dble sw. check colour in com. of its opposite sw. & make it the same in your dbl. the other 2 colours go in L1 & L2, either way round.
hope you're now less confused than me!!!
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