Make a backup of your project before following this guide.

Copy the video below, if you when you play in editor you get errors go to the BP_CookingComponent and compile it then go to the blueprints with errors and compile them like shown in the video. If you dont get errors you can ignore that part of the video.

Then go to the BP_CookingComponent and create a new function called GetFuelTime and add a Float output to the new function and call it FuelTime then copy the image below.

Then go to the BP_SGKSaveGame and then go to the PrepareCookingSaveData and copy the video below.

Then go to the BP_MasterCookingBuildPart then go to the LoadExtraCookingData function and copy the image below.

If after adding these nodes you get an error in your BP_MasterCookingBuildPart go back to the BP_CookingComponent and compile it, then compile your BP_MasterCookingBuildPart.

Last play in editor, this will force any effected blueprints to compile you can then click Save All in the content browser.