[2.0.55-0] Game crashes when loading save file (Chunk.cpp:779: value > 0 was not true)

[tyroiusrtmaonm]

Factorio will no longer load my save file. It goes through loading map and entity setup before showing this error message:

06-14-2025, 20-13-28.png (12.69 KiB) Viewed 233 times

The same issue appears to be affecting all of the auto saves as well as a backup save I made yesterday. A different save on the same playthrough that I made a week ago is unaffected.

I'm on Linux, Factorio 2.0.55-0 through steam. This is a modded playthrough (Pyanodons mod pack + others). I've tried loading the save without mods and see the same issue (loading the working save from a week ago does load, even if many of the entities are deleted).

I've since run a memtest and it looks like my RAM is failing, so that's likely the cause of the issue. If there's any chance of recovering this save I would be grateful, but I understand if it's unrecoverable.