Vanilla Tweaks Version:1.3.1

 

MinecraftForge Version:1.12.2-14.23.3.2673

 

Minecraft Version:1.12.2

 

(Optional) Just Enough Items (JEI) Version:

 

Client or Server?:

• Client
• Server

Crash Report (via. Pastebin): No crash

 

What happens / happened?: Mob spawner successfully dropped by using silktouch pickaxe. However it turned into a basic spawner when placed back. It does not seem to spawn any mob neither.

 

How can I reproduce it?: Silk touch a spawner in survival mode and place it back

 

(Optional) Mod List: