With Advanced Radar Network enabled alongside Maritime Industry, Factorio fails during startup with:
Failed to load mods: Error while running setup for entity prototype "mi-port-authority" (radar): next_upgrade target (arn_observation-radar-2) must have the same bounding box.
Environment:
-Factorio 2.1.24 (build 87808) with Space Age
-Advanced Radar Network 0.2.0
-Maritime Industry 1.1.1
-Maraxsis 1.40.26 (installed when the failure occurs, but no separate failing Maraxsis prototype has been demonstrated.)
Disabling Advanced Radar Network allows the pack to load successfully.
Technical details:
The resulting prototype has:
data.raw.radar["mi-port-authority"].next_upgrade = "arn_observation-radar-2"
An earlier inspection of the affected versions indicated that ARN adds this upgrade target to the vanilla radar. Maritime then copies that radar to create its Port Authority, retaining next_upgrade while changing the building’s dimensions.
The Port Authority has a 5×5 footprint, while Observation Radar II has a 2×2 footprint. Consequently, the inherited upgrade relationship fails Factorio’s prototype validation.
Possible resolution:
Maritime can clear next_upgrade when creating its Port Authority prototype, since the Port Authority should not upgrade into an observation radar:
port_authority.next_upgrade = nil
Alternatively, ARN could provide a compatibility adjustment that removes this unintended link from mi-port-authority after Maritime defines it, while preserving ARN’s intended radar upgrade chain.
This report comes from a larger modpack; a minimal reproduction with only ARN, Maritime, and their required dependencies has not been confirmed.
