If you accidentally connect two motors one (one new one and one that you have finished) then it crashes the client, and the server, the player can then not join the world and the server continually crashes if anyone joins the world. The only solution i've found is to remove the mod then restart the server and add it back, this deletes everything from the mod in the world which is very problematic.

Steps to replicate:

• Load world and place an basic engine
• Complete that engine then break one of the engine blocks
• Just place a normal basic engine there and then the client and server will crash

With no viable option to repair the world without loosing progress!

Versions that apply: 1.0.2f

I did not collect logs but will if you need them

@TheBombGamer Please provide logs from both the server and all clients.