Use Yelena, the trap tiles she makes each turn didn't count. Used Nick Fury and the ones that you create when activating a power didn't work either. This is kind of bad since it's a quest we only have one day to complete.
Same problem with 3 star Doom and his auto tile placement (using him for Battleworld too)
I somehow got 2 trap tiles created but he's created 20+ over multiple battles. I wonder if it's meant to be trigger traps or only counts if enemy matches them.
KGB
Jessica Jones’ and Elektra’s (5-star) trap tiles are also not registering for the daily challenge.
Same issue, used Taskmaster Shadow Step, Dr Doom, etc. And no trap tiles are being registered as created for this daily seasonal quest.
It's bugged. They are working on a fix.
But it's currently set to protect tiles so BrB + Polaris completes it real fast