Solved Ignite TNT When it's Placed

[WeeabooGarbage]

Ok so I'm trying to make TNT ignite when it's placed, and this obviously works

on place of tnt:
    set {tnt.block} to block below event-block
    broadcast "%{tnt.block}%"
    set block below event-block to redstone block
    set block below event-block {tnt.block}

but for some reason its not replacing the redstone block with the original block even though it displays the correct block that was below the TNT.

 

[ShaneBee]

Instead of doing it manually with a redstone block, you could replace the tnt itself with primed tnt:

on place of tnt:
    set event-block to air
    spawn primed tnt at event-location

 

[ShaneBee]

Oh that's a much better idea, thanks!