Decoy Trap

[Yuku Hitori]

The text say the next ally receive damage, that damage is reduced to Zero.

I have 2 allies on board.
And 2 decoy traps.
Against a Nishaven who activate his ability.

According to SRO the 1st ally who was summoned receive Zero damage, 1st trap will activate.
The 2nd ally will receive damage because the 2nd trap won't trigger because the 1st trap reduces the damage already to Zero on ally 1?

If this is correct, just say yes.

But it's a little complicate to understand if you play it physical I think...this could be discussion point, either you change the text or change the rule.
In that specific situation above, everybody will think that none of the allies will get damage.

[Gondorian]

It should be possible for both traps to respond to separate damage within the card, but I think it is coded so that only one trap can respond to each card that causes an effect.

I would class this as implementation bug and physical players would have got it right by intuition.