The game does not have a valid entry for "entity.thrown_trident.name". This causes the text to be displayed as is.
The thrown trident should have a valid name attached to it.
How to reproduce:
- Throw a trident on the ground
- Type "/kill @e[type=thrown_trident]"
- You should see "Killed entity.thrown_trident.name" in the games chat.
Screenshots Attached: No