What you were expecting to happen, and what actually happened:
Expectation: Skroll Reborn, a craftable Boss troop, should not be available in LTs.
Reality: It was.
How often does this happen? When did it begin happening?
Presumably when Skroll Reborn and Hatir Ascendant were introduced to the game.
Steps to make it happen again
Get unlucky with LTs.
Thanks for posting this. I’ve confirmed with the Dev Team that Skroll Reborn shouldn’t be in the reward drop pool for Legendary Tasks. I’ll submit a report to the team so this get fixed.
Thanks for bringing this to our attention, much appreciated