Mob Kabob achievement not triggering on PC version

Since the update that added spears, I've been trying to unlock the "Mob Kabob" achievement.

Just to clarify, my world is in Survival Mode with cheats disabled, and I have never enabled creative mode.

Here is what I did: I dug a pit containing five types of mobs: Zombies, Pigs, Cows, Sheep, and Chickens. I held the spear and charged the attack (long-press right-click) to kill them all, like some kind of ancient sacrifice. However, no achievement notification popped up.

I then exported the save to my mobile device and repeated the process. Surprisingly, the achievement unlocked successfully on mobile.

This leads me to believe the issue is not related to the save file itself, but rather a platform-specific bug.

I hope the devs can look into this and fix it in a future update. Thanks!