Crash while customizing connectors

[pietro-lopes]

Issue description:
Got a report from a player:
"I've been customizing the connectors"
Steps to reproduce:
From player: "I've been customizing the connectors"

Versions:

• Minecraft: 1.21.1
• Forge: Neoforge 21.1.93
• McJtyLib: 1.21-9.0.5
• XNet: 1.21-7.0.3

Possibly incompatible mods and versions:

Relevant logs, if any:
Crash Log:
https://mclo.gs/46laL9c

[McJty]

I'll check it out