In the lack of any better information (for example, occasionally scripting situations can be setup up where enemies can die, but their sprite still shows), I'd guess that the event page simply isn't running. Are the Scope and Conditions for the page set up correctly? Does the battle animation ("Shout") show? Are there any other pages that run at the same time?
Yes, the animation runs properly. Everything actually runs properly... except for the boss being killed from the damage. I tested it strenuously and the boss does indeed get the state removed, damage dealt, and all the other stuff. He just doesn't die for some reason. I ran this very same script before, but it broke for some reason, and I have no idea why. It's also strange to note that the very same script set up will work on other battles with other troops, and it's just this one that refuses to die.
Prevent death in the states area makes it so HP cannot go below 1 HP. If it ever reaches 0 or below, it changes it to 1 HP. You have to remove the state to allow the knock-out.
The death prevention state is removed prior to the damage being dealt. I actually use the very same event process on another fight and it works fine there.
Have you tried adding the Knockout state to all enemies instead of dealing damage?
Yes. It still doesn't work.
I think the problem is a different one: RPG Maker doesn't run battle events when all enemies are dead. It will jump straight into the victory scene. You need a plugin to fix this behavior. I guess we could also ask the staff to fix it in RPG Maker MV 1.2.
EDIT: Nevermind, I jumped to a conclusion way too fast and misunderstood the whole point. I'm sorry! I did submit said topic, though, so it wasn't in vain. :p
It's the thought that counts!
[EDIT]
Here's the full event page. The entire thing will run properly, it's just the boss does not collapse when HP is reduced to zero. BUT if I take the bit I posted in the original post and place that same script on any other fight, it works properly.
[NOTE]
Also note that on the script, Party Member Erim is affected by a "lose Plot Armor", "take HP damage (allow knockout)". This works properly and Erim does indeed get knocked out.
