Hi, thanks for the report. This was another hard one ... we have finally figured out this can happen when save is created while certain blueprints are on belts. Unfortunately the save is corrupted in a way it can't be recovered easily. I am sorry :( EDIT: Fixed for 0.12.8. (Corrupted saves won't wor...

Can you attach here log from 0.12, please? We have more logging related to display info in current version.

No, new version won't fix old saves. Your recovered save is attached. I couldn't find quickly "clock mod", so it is resaved without it ... hopefully it wasn't essential

Hi, thanks for the report. I am running heavy mode simulation on your save right now, but I can see you are using Treefarm-Lite. We have solved desync issue related to this mod for 0.12.7 already.

Possible duplicate of: https://forums.factorio.com/forum/vie ... hp?t=15037

Try to enable V-sync and restart the game.

Stack trace in your log says it crashed somewhere deep in nVidia driver (nvd3dumx.dll), so I don't know how to help you. Maybe try to reboot your computer.

Thanks for the report, fixed for next release.

Hey, Lilrock. How did you produce Server_Map.zip? If I try to load it in singleplayer game crashes, in your log I can see that bunch of migration scripts were called even though the save version was 0.12.6 ... that doesn't seem right either.
Did you modify base or core mod in any way?

No, the fix didn't add target roboport station to debug overlay. We use the overlay when we debug or optimize something, so we stuff to it as we need. Maybe you could suggest adding an overlay designed for optimizing factories .

I investigated more and there is definitely something wrong in 5dim-trains. There is probably bug in tracking special 5dim wagons, because single roboport wagon is tracked as two wagons and that causes all sorts of problems to the mod, which eventually results to desync. Moving the thread to "W...

Hey dylloop, here is your recovered save: https://www.dropbox.com/s/0q5ivfi19g37l ... d.zip?dl=0
Until 12.7 is released be careful with FARL -root and maintenance modes

So after more investigation we were able to confirm rounding errors in float point computation was cause of the desync in Treefarm-Lite. Rseding suggested increasing precision of floating point values in serialized Lua tables in save files, so we tried it and it seems to fix the issue. So this is fi...

Fixed it ... again

"Luckily" ColonelWill, who streams Factorio on Twich had this issue too and we were able to find in VODs the event that caused it. It is when FARL in maintenance mode tries to destroy rail under another train. That throws an error, but game state is broken. So I am happy to announce the is...

Duplicate: https://forums.factorio.com/forum/vie ... =7&t=15353

The desync is caused by Treefarm-Lite ... but I am not sure why. The farms use fertilizers in different ticks, but the mod seems to serialize everything to save correctly. I suspect some rounding error, but I need to investigate more.

Only thing that comes to my mind that might quickly solve the issue is to force the game to use OpenGL instead of DirectX. I prepared "allegro5.cfg" file, that will make the game use OpenGL. The file needs to be in bin\x64 folder next to Factorio.exe. I am sorry for bad experience you had ...

Thanks for the report. Could you attach also log file, please?

Hi, thanks for the report. This is basically duplicate of https://forums.factorio.com/forum/viewtopic.php?f=7&t=15180 but we still have not figured out what is causing this problem. So far I have 3 saves corrupted this way. Corruption is in rail network and all saves use FARL, so I am getting su...

Hey, is anyone who has this issue still around? I have added some extra information about available displays to Factorio logs, so I would be interested to see the 0.12.5+ logs from people who experience this issue.