Respawn on Kills? Custom GAMES rules help

I’ve been trying to make a variation of Team Slayer where every player has a single life, but they when a teammate gets a kill, it respawns dead teammates. The object is to eliminate the entire opposing team. Before they can revive each other.

There is a rule under “Respawn Settings” and then “Respawn Modifiers” called “Respawn on Kills.” It says that, if enabled, the player’s kills will allow dead teammates to respawn even if they are out of lives. Me and my friends have tried this quite a lot, but whenever a player gets a kill, it doesn’t revive any of the dead team mates like the rule says it will.

What gives? Why won’t dead team mates respawn on their team mates kills? How can I fix this?