As others have stated, my Frostmorne killed three minons, and when it died, didn’t resummon any of them. Also, for some reason, my opponent’s minion didn’t trigger its Deathrattle when my Frostmorne hit it on the final Durability. Link below (take away the *'s).
https***://hsreplay.net/replay/jDyY7nbT5GtJjuyo7KD5L4
I have also reproduced the bug. I don’t have a replay, but reproducing it doesn’t require any fancy steps, it just requires having minions killed by frostmourne.
Looks like it did to me. Is there some other explanation for Catrina Muerte disappearing just before the Loot Hoarder was played?
This also happened to me. The last of the three of my opponents cards that I hit was the Rotten Apple. I specifically did it for the return taunt and heal. Nothing summoned upon it’s deathrattle and lost the game on my opponents turn. I had two summon cards (For a total of 3 summons + 1 x 5 heal = 20 health) and a seance which would have set me up perfectly for the win but I never got the chance. Game over.
https***://hsreplay.net/replay/fEuv9xf5Dr3t6vFfwQUQoR
Frosmourne not summoning minions it killed is a known issue. See Known Issues List 2019 - Updated Dec 12th - #11 by Aelathera