Bukkit

What steps will reproduce the problem?
1. Start A Star. Go To Star.
2. Mine The Core. Place A Diamond Block Next To The Old Core
3. Break That Diamond Block

What is the expected output? What do you see instead?

Only One Message Saying %player% reached core

Instead It Can Be Spammed

What version of the product are you using?

V1.1 Spigot B 1178

Do you have an error log of what happened?

No

Please provide any additional information below.

You do lose the player placed diamond block