Whenever I break a sticky piston, it falls to the ground without issue but when I pick it up, I get disconnected with an Internal server error. Neither the client nor the server crashes. When I log back in, I find that I now have an extra Sticky piston showing that it duped the item.
I have just updated to Forge version 2147 (client via Curse, Server via Windows installer downloaded from website). A copy of my server and client logs are below (I dont see a way to attach to the post?).
I believe that I have provided everything per the sticky. If I am missing something, my apologies! Just let me know and I will provide! I can also provide an export of the Curse profile if need-be. All mods were installed via Curse.
https://www.dropbox.com/s/8ngabhv8qnseic6/11-18-16%20Sticky%20Piston%20Crash.zip?dl=0