Passive Mobs not spawning via a Spawn egg in /tr

#What did you expect?

I expected a chicken for any passive mob to spawn where I placed the egg.

#What actually happened?

Nothing happened, the egg only does the animation, not the spawning.

#Do you see any sort of error message?

No error message, no output.

#How can we reproduce this problem?

1. Go down to trusteed

2. Go in /tr

3. Try and spawn a passive mob egg

4. nu llamaz