The Card Scalding Viper's Sorcery Adventure Steam Clean doesn't seem to work.
Multiple occasions I've targeted my opponents creature and have had bugs.
The first occasion I targeted a black wall creature and it appeared to do nothing, the creature remained on the board. However it was clear at the end of the game that it was a visual bug and had been returned to my opponents hand and then he recast it.

Secondly and worse:
My opponent brought my creature out of my graveyard to their board, I tried steam clean on it to return it to my hand. Except it did nothing. It didn't even return to his hand.

It would seem that there are several bugs around the Steam clean adventure.

I'm on PC and this was in Ranked Normal games.