[1.8] Need way to fix an entity only existing on server, not client

[GalianRyu]

I have been doing some testing with a new block I added to the mod I am making and found a particular bug.  The block has an entity associated with it and if a player does certain things, they end up with the entity not showing up on their client. 

 

I've tried several ways to fix this, but none of them work because entities are spawned on the server, the server still thinks the entity is there, and any code I put in the block to test for this only runs on their client.  I know network wrappers and packet handling is there for syncing between client and server, but I still don't fully understand how to implement it.

 

Can someone help me out?

[GalianRyu]

Nevermind, figured out a way to prevent the player from doing what caused the issue in the first place. 

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