Firewolf

I've maybe found something: the last changelog of Project:red says "- FIX: Stone brick itemstacks with -1 block ID", but I saw another topic with the same issue for the mossy cobble ... I'll download the last P:R and see what's happening EDIT: fixed ! Now I have a nice crash but I know the solution.

I have the same problem with ID 98 I have all your mods except AutoPath, Fastcraft, Tainted magic, Thaumic horizons and Tubes. But I had no problem with any texture ... And the world of the server was used with other versions of my mods (I updated ~20 mods before the problem).

You have to restart the launcher, and to install forge client (don't check the "extract" option) in your minecraft directory ("%appdata%/.minecraft/" or "user/minecraft/" on windows, "~/.minecraft/" on other systems).

All the mod versions are matching, the Tails mod error was here before and it was working perfectly. (Just an error displayed outside of an if(){} I think). I copied the config from the client to the server and updated Mekanism, just in case. It didn't work. I re-installed Forge and it's libs, it didn't change anything. Now I think it's a mod, is there any way to force a crash and see if a mod is errored ?

I had this problem last day, but without logs I can't say if it's the same issue. Is the console showing something like "ignoring a keep-alive packet" ? If it is, update all your mods

I tested with cauldron AND normal forge server, and I've the same problem. Should I test with the forge libraries ? They are the same versions than the KCauldron ones, aren't they ?

Client log: https://drive.google.com/file/d/0B9RqL-zfpcJWcGtESzlTc1dSREk/view?usp=sharing Server log: https://drive.google.com/file/d/0B9RqL-zfpcJWajFfSUxsek9YaTg/view?usp=sharing (very large logs ... too large for pastebin) The id 98 is stone bricks in vanilla Minecraft. When I join my server the message is displayed by the client, on the login-error screen (with the dirt in background), but there is no crash. The server just sees the connexion closed. I have tested with Forge 1408 and 1448, and KCauldron 1408.91 and 1488.121, with always the same result. I have the KC fix for Mobius core, and the libraries were installed with KCauldron-1448.191. Both server and client are running Java 7u80, with 6GB of RAM and 512MB of PermGen. If you need my server config, or the whole directory, just ask me. I really don't know where is this error coming from ...