Somehow I solved it but I don't know which unsubscribing of mods solved it TT

@Cgameworld I already confirmed it.

@The Sleepwalking Post It shouldn't, this mod does not add anything to save files. Make sure the mod is unsubscribed if you are not using it, not just disabled

Is this error derived from the lack of your mod?

System.NullReferenceException: Object reference not set to an instance of an object
at CGWRailwayCustomizations.ReplaceTracks.ReplaceToShnGSleepers () <0x00378>
at CGWRailwayCustomizations.Replacer.Run () <0x000df>
at CGWRailwayCustomizations.Patch.Postfix () <0x00014>
at (wrapper dynamic-method) LoadingWrapper.LoadingWrapper.OnLevelLoaded_Patch9 (LoadingWrapper,SimulationManager/UpdateMode) <0x0043d>

@dhhil RON should do the trick. https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2405917899

Do you, does anyone, happen to know of a mod that will globally replace vanilla tracks with, say, Railway project tracks or NAR tracks? Thanks.

@cgameworld Networks would load from very far away and very up close, but anything in between they would show up blue. It affected every network.

@coffeeshark What kind of errors were you encountering?

This has some quite serious errors when mixed with other mods. Just a heads up to others, so they don't have to spend several days going through their settings one-by-one to find the game-breaker.

Hey ...wow ! Cool and impressive ! :) thanks !!