AgriCraft-1.7.10-1.5.0.jar
Forge 1566
http://blog.terpo.org/upload/mc/modlist.txt

Today I've got a weird crash for you. We are playing on a server but only the client disconnects.

I built an tank of agricraft (we tried a 7x7x1 (l * w * h)) and started breaking it again. After a few blocks everyone in the area get render crash:

http://pastebin.com/EPbVfcPM
http://pastebin.com/qq633Axr (another player)

The tanks was build over one chunk border.

This problem is also present on the server, in the same function - see http://pastebin.com/KQHFW7Gs

Is there an invisible railcraft block somewhere in there? Also, inb4 always render issues.

It looks more like a tank went out of bounds into a railcraft block.

My guess ts multiblock issue and thread racing again, always has been with the multiblock code, on the server thread the tank is broken, but in the rendering thread the multiblock data hasn't synced to all tanks yet.

It's a railcraft hidden blocks, it is created where a player is and goes away after a few seconds, used for the trackign aura.
When breaking a tank, break the most NORTH, EAST, DOWN block last.

There was no railcraft block nearby. Thats something I can confirm^^.
Any tips how to prevent that crash? Our server is quite small and there is not a big problem to tell it all players.

But since I am focusing on 1.9, I won't be doing any work on 1.7 anymore, my apologies: https://github.com/InfinityRaider/AgriCraft#minecraft-versions