Describe the bug
I have created a double-sided sliding door which will open 2 blocks each way. however when closing, you can only close it halfway, if you attempt to close it completely it has a chance of crashing.

Expected behavior
Double-sided-sliding to close fully.

Crash Log
https://paste.dimdev.org/ikisupepey.mccrash

Versions CCL Version: 3.2.3.357 Universal
FMP Version: 2.6.1.81 Universal
MrTJPCore Version: 2.1.3.35 Universal
ProjectRed Version: 4.9.1.92 (Base, Compat, Fab, Inter, Lighting, Mech, World)

Screenshots/Videos


If closed by one more it can crash.

Also is this lighting issue normal?

Duplicate of #1454