[1.12.2] Glowing potion effect not taking effect

[AgentEpsilon]

Hi all,

I'm attempting to add a glowing effect to all entities within distance from the player. My (kotlin) code looks as follows:

worldIn.getEntitiesWithinAABB(EntityLivingBase::class.java, playerIn.entityBoundingBox.grow(RANGE))
    .filter { it.canBeHitWithPotion() }
    .forEach {
    	playerIn.sendMessage(TextComponentString("Found entity: ${it.toString()}"))
    	it.addPotionEffect(PotionEffect(MobEffects.GLOWING, 200, 0))
    }

The debug message is working correctly for all mobs within the range, and I can see the glowing effect in my inventory. However none of the mobs are actually glowing. The `addPotionEffect` line is the exact same way that the Spectral Arrow triggers the potion effect, so I cannot figure out why this doesn't work. Any advice would be appreciated!

- AgentEpsilon

EDIT: This exact same thing happens for any potion effect - the effect appears in my inventory, but nothing happens.

Edited April 23, 2018 by AgentEpsilon

[Alexiy]

Do you call it on both sides? I think it is required to add effect on both client and server.