[VMR] That item cannot be sold to the server

Minecraft Username:
@probablydead

Brief Description:
Unobtainables cannot be sold to the server

Instructions:
1. /sell hand with unobtainable

How many times did you recreate this?
3 times with 3 different spawn eggs

Result:
Error: That item cannot be sold to the server

Expected Result:
Sell to the server and add to booklet

Evidence:

 

Thank you Andrew