Describe the bug
A clear and concise description of what the bug is.

if I connect too many light to switch, I cannot place a switch

Crash report
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To Reproduce
If applicable, the steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Screenshots
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Please complete the following information:

• Minecraft Version: 1.12.2
• Mod Version: 6.3.0