Describe the bug
When you are playing multiplayer on a server, and you try to close the Engineer's manual it will kick you from the server with a message that a fatal error occured. It is caused by this addon, as removing it fixed the issue.

To Reproduce
Steps to reproduce the behavior:

1. Create and join a minecraft server with the base mod and this addon
2. Open the Engineer's manual
3. Close it

Expected behavior
It should just simply close it and not kick the player.

Environment

• OS: Windows 10
• Minecraft version: 1.12.2
• Forge version: 14.23.5.2859
• Immersive Intelligence version: 0.12-98
• Immersive Engineering version: 0.2.1

https://github.com/Pabilo8/ImmersiveIntelligence/blob/fb18ad30d300af0306a2a98363eca29a25e3c513/src/main/java/pl/pabilo8/immersiveintelligence/common/network/MessageManualClose.java#L52

Having the same issue ^^
Was there a solution to this at all?

Having the same issue ^^ Was there a solution to this at all?

#158
You need to compile it yourself, though.

Fixed.