Arcane Defenders shorted a golem for no discernable reason

Bug Report
1

Simple as that … I cast Arcane Defenders and it summoned 1, 5/6 golem instead of 2.

2

Was this the turn after Reno Hero, by chance?

3

Legendary · Hero · Showdown in the Badlands · Battlecry: If your deck has no duplicates, empty the enemy board and limit it to 1 space for a turn. It

Looks pretty discernable to me…