[2.0.77] Save crashes on load – ElectricEnergySourcePrototype / double entity problem
Posted: Wed Oct 07, 2026 1:56 pm
Hello,
my save game suddenly crashes every time I try to load it.
What happened
I was playing normally and later tried to load my save again. Factorio now crashes during the loading process every time.
The crash log ends with:
ElectricEnergySourcePrototype::createInternal
EnergySourcePrototype::loadInstance
Inserter::Inserter
followed by:
Energy source error, most probable cause is the double entity problem.
The error occurs while loading surface 0 ("nauvis").
What I tested
Factorio version: 2.0.77
Main save crashes consistently
_autosave1 crashes as well
_autosave2 crashes as well
_autosave3 crashes as well
I also tried loading the save on the current experimental branch, but it still crashes
The game itself launches normally and the crash only occurs when loading this save
This save uses several mods. The complete mod information should be contained in the attached save/log.
Space Age gameplay is not active in this save yet; I have only been playing on Nauvis.
Expected result
The save should load normally.
Actual result
Factorio crashes while loading the map.
I have attached:
the affected save file
factorio-current.log
If possible, I would greatly appreciate it if someone could check whether the save can be repaired, since all available autosaves seem to contain the same corruption.
Thank you!
my save game suddenly crashes every time I try to load it.
What happened
I was playing normally and later tried to load my save again. Factorio now crashes during the loading process every time.
The crash log ends with:
ElectricEnergySourcePrototype::createInternal
EnergySourcePrototype::loadInstance
Inserter::Inserter
followed by:
Energy source error, most probable cause is the double entity problem.
The error occurs while loading surface 0 ("nauvis").
What I tested
Factorio version: 2.0.77
Main save crashes consistently
_autosave1 crashes as well
_autosave2 crashes as well
_autosave3 crashes as well
I also tried loading the save on the current experimental branch, but it still crashes
The game itself launches normally and the crash only occurs when loading this save
This save uses several mods. The complete mod information should be contained in the attached save/log.
Space Age gameplay is not active in this save yet; I have only been playing on Nauvis.
Expected result
The save should load normally.
Actual result
Factorio crashes while loading the map.
I have attached:
the affected save file
factorio-current.log
If possible, I would greatly appreciate it if someone could check whether the save can be repaired, since all available autosaves seem to contain the same corruption.
Thank you!