Satisfactory Modding•3d ago

AutoLink Railway Blueprint Crash

Assertion failed: !this->mControlledConnection->GetSwitchControl() [File:C:\src\SatisfactoryModLoader\Mods\AutoLink\Source\AutoLink\Private\FGBuildableSpawnStrategy_RSC.cpp] [Line: 21] 
Target railroad connection already has a switch control

Assertion failed: !this->mControlledConnection->GetSwitchControl() [File:C:\src\SatisfactoryModLoader\Mods\AutoLink\Source\AutoLink\Private\FGBuildableSpawnStrategy_RSC.cpp] [Line: 21] 
Target railroad connection already has a switch control

When placing down a blueprint that has railways and train platforms that have switches on it, i can reliably reproduce this. AutoLink 0.8.1 Let me know if you need a save and/or blueprint. @Epp

SMMDebug-2025-03-01-...

Solution:

Ok v0.9.0 is uploaded. Please double check the modular train station bp and let me know if that works, too

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9 Replies

FICSIT-Fred•3d ago

Automated responses for Beef (617572522933616647)

Key Details for SMMDebug-2025-03-01-06-21-46.zip

SMM Version: 3.0.3
SML Version: 3.9.1
Installed Mods: 99
Game: WindowsClient CL 385279 from steam
Path: `c:\Program Files (x86)\Steam\steamapps\common\Satisfactory`
Command Line: cmd /C start  steam://rungameid/526870-NO_EOS_OVERLAY

SMM Version: 3.0.3
SML Version: 3.9.1
Installed Mods: 99
Game: WindowsClient CL 385279 from steam
Path: `c:\Program Files (x86)\Steam\steamapps\common\Satisfactory`
Command Line: cmd /C start  steam://rungameid/526870-NO_EOS_OVERLAY

Crash found in FactoryGame.log

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Crash found in FactoryGame_be28b253_Local_Stable_WindowsClient.log

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Abridged_FactoryGame...

BeefOP•3d ago

Occurs in 0.8.0 as well, but not 0.7.0

Epp•3d ago

Hmm, I must have missed a corner case. Can you upload the blueprint that crashes the game and give me some quick repro instructions? Is it “just build the blueprint”?

BeefOP•3d ago

just build it, and it crashes

Trainstation_Mega.sb...

BeefOP•3d ago

you do need a fair bit of resources for this one or creative - i think a minimum reproducible case would be multiple intersections in a blueprint although i haven't tested that specifically

BeefOP•3d ago

This one also reproduces it but is dependent on the Modular Stations mod https://ficsit.app/mod/ModularStations

Modular Stations - SMR

Provides modular pieces for building train stations

8_Platform_Modular_T...

Epp•2d ago

I'm looking at this now. One of the rail connections in the blueprint is attached to only 1 track but is reporting that it already has a switch control. To the best of my knowledge, switch controls don't get put on a connection until it is connected to more than 1 other track, because there's nothing to control if the train only has 1 route to take. I think I can work around it without breaking anything in AutoLink but I think the actual bug lies somewhere else. Ok, I was able to build the mega blueprint with my workaround. Building a new version now that includes some other minor improvements, as well.

Solution

Epp•2d ago

Ok v0.9.0 is uploaded. Please double check the modular train station bp and let me know if that works, too

BeefOP•2d ago

I think the weird railway switches in a blueprint are a bug from blueprinting railway tracks or other weird behaviors like that, but glad you have a workaround I'll test it out 🙂 all builds without issues, solved!

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AutoLink Railway Blueprint Crash

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