I play "All The Mods 7 v0.4.9" on a Server but if i try to use SuperCircuitMaker the Server crashed.
All players are kicked and the following message is in the crash report:

[Server thread/FATAL] [net.minecraftforge.fml.loading.RuntimeDistCleaner/DISTXFORM]: Attempted to load class net/minecraft/client/multiplayer/ClientLevel for invalid dist DEDICATED_SERVER

Forge: v40.1.31
Mod: v0.2.9

Hey there! Is that all that appears in the log when the error happens?
I'll need a full stack trace to be able to tell what part of my code is causing it, because that alone really doesn't tell me much.

Hello, I have the same problem. But I would say that the server does not crash directly. I get kicked from the server when I want to correct a redstone line on the circuit or maybe already when setting redstone. It freezes somehow and I get kicked.

In singleplayer mode you also hear a sound when you set redstone, I think. But not on the server. The server keeps running and I end up in the main menu of the game. I can then no longer join the server, because I am supposedly still on it and at some point I have to restart the server.

But that's why there is unfortunately no crash log per se, only the observation via the live console.

Greetings Nico

From the sounds of it, that could be an issue with the way I communicate with the client. I'll do some testing tomorrow, try to reproduce and patch it, and report back with my findings.