Since the Holy Smite change, I can’t complete the three yeti mirror, are they gonna fix this?
You can still finish it. Here is not the correct place if a puzzle is broken, you would have to go to the Hearthstone Forum and make a ticket there.
Solution: You need to trade the right River Crocolisk in his and kill yours with the Holy Smite, then trade you other Crocolisk in the Yeti and Heal the other Yeti.
Next time do a little bit more research before you make such claims.
A loadless timer for Hearthstone has been made recently by Streetbackguy.
At the moment, we're still sorting the leaderboard by real time. But we're encouraging every runners to use the loadless timer. This allows an easier transition if one day we decided to shift into a loadless time leaderboa