I was using editor mode to create blueprints for the seablock modpack and had your mod installed. A couple of hours in I put the game speed to 0 to edit items without the passage of time, upon resuming to 4x speed, the save crashed with this error.

The mod Belt Balancer (3.0.0) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event belt-balancer::on_nth_tick(1)
belt-balancer/objects/balancer.lua:198: attempt to get length of local 'lane' (a nil value)
stack traceback:
belt-balancer/objects/balancer.lua:198: in function 'run'
belt-balancer/helper/message-handler.lua:33: in function <belt-balancer/helper/message-handler.lua:31>

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