When building the radars in a Blueprint Sandboxes surface. Sandbox in question https://mods.factorio.com/mod/blueprint-sandboxes
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The mod FFF 402 radars (1.0.5) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event fff-402-radars::on_built_entity (ID 6)
fff-402-radars/control.lua:18: the surface's radar circuit relay got invalidated, what happened?
stack traceback:
[C]: in function 'error'
fff-402-radars/control.lua:18: in function <fff-402-radars/control.lua:10>
