Twice now, my Room cards have not procced after a stack has resolved.

The first time, Meat Locker targeted a creature with Ward 2. Ward 2 was paid, (I know this because the lands tapped in response) but the creature was still unaffected by Meat Locker and did not tap. I don't have a record of this game.

The second time, as shown in the logged attachment, Bottomless Pools targeted a creature to return to the hand. It did not have Ward. The creature, Three Tribe Scribe, has: "Whenever Three Tree Scribe or another creature you control leaves the battlefield without dying, put a +1/+1 counter on target creature you control." Because the game correctly read the creature as leaving the battlefield but not dying, my opponent placed a +1/+1 counter on their creature. As the stack resolved, Bottomless Pools did not return Three Tribe Scribe to my opponent's hand. The creature remained on the battlefield.

If my spell had been countered, warded, or the creature was protected from leaving the field by another ability I'm missing, Three Tribe Scribe's ability should not have procced. Either way, what occurred in this game is surely unintended.