[0.15.2] Research progress is being lost on the game loading

[apriori]

Subject itself.

[Rseding91]

Can you give me a save file and steps to reproduce it?

[apriori]

Can you give me a save file and steps to reproduce it?

Yep. https://yadi.sk/d/r2yBUfV13HP86R

• Load the savegame.
• Start researching "Architecture" (Factorissimo2 first tech).
• Save the game.
• Exit the game.
• Start the game and load the savegame.
• Ooops, my sci-packs and progress get lost.

[Rseding91]

You've got a broken mod. Remove "Simple Packing" and it will fix it.

If you used that mod in MP it would desync as soon as the first player joined.

[apriori]

You've got a broken mod. Remove "Simple Packing" and it will fix it.

If you used that mod in MP it would desync as soon as the first player joined.

1. Why is this mod seeming broken to you? Because of resetting algorithm in controls.lua? Or local variable outside all functions? I should know it to avoid bugs in my mods.
2. Removed the mod. Still getting the same issue. Updated archive: https://yadi.sk/d/r2yBUfV13HP86R

[Rseding91]

1. Why is this mod seeming broken to you? Because of resetting algorithm in controls.lua? Or local variable outside all functions? I should know it to avoid bugs in my mods.

Yes, it's running code on load which means every time you load a save it will re-run. When someone joins in MP they load the save and it will re-run. Except, it only runs for the person joining because the server and all players connected don't load the map when someone joins.

[Rseding91]

It's still broken because the Loaders mod is also broken. Every time you load a save file with it - it will also reset all technologies/recipes. And again, if you used that mod in MP it would immediately desync upon anyone joining the game.

Resetting technologies/recipes should be done through migration scripts: http://lua-api.factorio.com/latest/Migrations.html

Delete the control.lua from that mod and it will fix it.

[apriori]

Ok. Resetting technologies is the key. Thanks!