Server problem

[BBYYBBQQ]

When I add CarryOn this mod to both server and client.
Enter the server and generate the wrong block.
I've tried other mods that have the same problem. This doesn't seem to be a world generation issue because the world is normal again after I removed the mods.

[J4ckTh3R1pper]

having same issue, when I tried to install memoryleakfix to prevent memory leaks, the entire world displays wrong block

[J4ckTh3R1pper]

deleting GPU Memory Leak Fix mod on the client solves this issue, however your system could be at the risk of getting a BSOD.

[oromix]

Same issue when installing chunkloaders mod. I had the mod installed and working fine with gravitas version 0.3.4a, but when I upgrade to 0.4.0 this issue started happening. Had to remove the chukloaders mod to be able to play