Issues with Drop table

Hello,

Was testing this on a server we have for LAN play, and not getting the drops as expected.

Using the example configs, spawning this boss.

SkeletonKing:
Type: WITHER_SKELETON
Display: '&6Skeleton King'
Health: 400
Damage: 8
Skills:
- message{cooldown=20;m="<mob.name><&co> None may challenge the Skeleton King!"} @PlayersInRadius{r=40} ~onCombat >0 0.2
- message{m="<mob.name><&co> Ahahahahah! Die, <trigger.name>!"} @PlayersInRadius{r=40} ~onPlayerKill >0 1
-...

Issues with Drop table