Enchantment effect doesn't show on an enemy during death animation

Not exactly sure if this is an issue or a weird quirk, but if an enemy NPC or a creature is killed by an enchanted item, or an enchanted weapon, or an enchanted arrow the magic effect of the enchantment from those items doesn't appear on the enemies almost all the time during their death animation but the damage sound is played, the enchanted item and weapon and arrow should have one enchantment so this can be produced.

This is tested with weapons and items with Frost and Spark damage enchantments, and sometimes poisonous arrows effect doesn't show on the enemy if (the effect wasn't there at first and instantly) killed by the arrow too.

The weapon used in these pictures is Steel Sparkslayer.

NPC:

Creature (Bonelord):

Happens in both v0.47 and v0.46