Crash on `/getTrainRails`

[saffronjam]

As simple as that, Satisfactory crashes on requesting /getTrainRails

Unfortunately, I dont have debug symbols enabled as I play on Linux, so I cant give you the crash report. I don't think I can enable it myself :)

But I found these logs (it just doesn't say from what file it originates):

[2026.01.19-19.41.16:669][353]LogWindows: Error: appError called: Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:C:\ue\Engine\Source\Runtime\Core\Public\Containers\Array.h] [Line: 771] 
Array index out of bounds: 0 from an array of size -1460651168

This to me sounds like we are trying to use an uninitialized array (in hexadecimal 0xA9000000 )

[saffronjam]

I've tried to localize it myself going through the code and found a likely contender that might need a Valid check or so?

// In Source/FicsitRemoteMonitoring/Private/Endpoints/Travel/Trains.cpp
		UFGRailroadTrackConnectionComponent* ConnectionZero = RailroadTrack->GetConnection(0);
		UFGRailroadTrackConnectionComponent* ConnectionOne = RailroadTrack->GetConnection(1);

		FVector PointZero = ConnectionZero->GetConnectorLocation();
		FVector PointOne = ConnectionOne->GetConnectorLocation();

[porisius]

I would think the .debug files would be the same as the .pdb files for Linux. Joys of not being a dev, haha.

Anyways, could I get a full crash report? I am curious. It ought to be in /FactoryGame/Saved/Crashes, but that is using my linux server's path. Not sure if it differs for Linux Client (which uses the as the Windows client build).

[saffronjam]

Will this do? I will look into the debug symbols

latest_crash.zip

[porisius]

SF 1.2 changed a lot to TObjectPtr, so I would ask to re-test with the FRM 1.5.0.

I'll leave this open though.