The latest version (0.10.2) crashes when a ghost is revived with a construction drone.
I know that the error names Construction Drones, but I only updated Bottleneck prior to this first occuring.

418.539 Error MainLoop.cpp:1142: Exception at tick 583515: The mod Construction Drones caused a non-recoverable error.
Please report this error to the mod author.

Error while running event Construction_Drones::on_ai_command_completed (ID 113)
The mod Bottleneck caused a non-recoverable error.
Please report this error to the mod author.

Error while running event Bottleneck::script_raised_revive (ID 79)
Bottleneck/control.lua:171: attempt to index local 'entity' (a nil value)
stack traceback:
Bottleneck/control.lua:171: in function <Bottleneck/control.lua:167>
stack traceback:
Construction_Drones/script/construction_drone.lua:1878: in function <Construction_Drones/script/construction_drone.lua:1857>
(...tail calls...)
Construction_Drones/control.lua:37: in function <Construction_Drones/control.lua:35>
stack traceback:
[C]: in function 'revive'
Construction_Drones/script/construction_drone.lua:1878: in function <Construction_Drones/script/construction_drone.lua:1857>
(...tail calls...)
Construction_Drones/control.lua:37: in function <Construction_Drones/control.lua:35

I am also getting this crash. It is very easy to reproduce. Install both construction drones and the latest bottleneck and place a ghost entity. The moment the ghost gets constructed by the drone it will crash.

Thanks. Fixed in 0.10.3, please verify.

FIxed, thank you.

Great. Thank you for checking.

Also fixed on my end. Thanks for solving this so quickly!