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Table of Contents

How to Report An Issue
What We Need & Where To Report It
Technical Info
Save Game
Loader Log
Timetable UID
Are You Running Standalone or Chained
How We Log Issues

How to Report An Issue


We understand how frustrating it can be when you encounter an issue with a simulation or a timetable. In order for us to help you as best as we can to resolve any issues we have put together this guide, it helps you to give us all of the information we need so we can properly investigate.

Given the diverse nature of railway signalling, something you think is an issue may actually be a feature, we strive for accuracy and sometimes simulate real interlocking faults or quirks. Likewise sometimes the real timetable is not perfect and clashes between trains exist. Check out the simulation manuals which will make notes of these.

Sometimes it isn’t always obvious what era a simulation is being run in, or what timetable is in use, and this information is key for us to help investigate why something is happening.

What We Need & Where To Report It

We only accept reports via our forum at If any appropriate thread does not already exist to report your issue, start a new thread in the appropriate section of the forum, which will generally be the applicable simulation or timetable sub forum. Loader issues can be reported in the “General questions, comments and issues” forum.

Please provide the following

  • Outline
  • Technical Info
  • Savegame
  • Loader Log (For Access violations & Popup Error Messages)
  • Timetable UID (For Timetable issues)
  • Are You Running Standalone or Chained


Give a brief description of the issue you have encountered, the more detail you can give in what you did leading up to the issue can really help us narrow down how to recreate it. Some issues are more complex than others and we appreciate some things are as a simple as “Platform clash at Rock Ferry between 2Y99 & 2R99 in the 2019-01-09 SX timetable”

Technical Info

We always need the Technical Info, even for what seem like minor issues, it allows our team to see exactly how you loaded the simulation, and other important information like the version in use.

  • You can find the technical Info and include it in your forum thread by:
  • Clicking the Hamburger button to the left of the clock
  • Help
  • About
  • Technical Info
  • Pressing Copy
  • Pasting into your forum thread.

An example of Technical Info:

OS: Windows 10 Enterprise 64bit

Loader: SimSig Loader version 5.26; Sim: Simulation Sandhills IECC (Merseyrail); data version 1.3 build 1

Licence: Locked licence in use

TT: Sandhills IECC (Merseyrail) 2015-04-08 SX v5.1.0

TT filename: Sandhills IECC (Merseyrail) 2015-04-08 SX.WTT

TT merged: False

Sim upgrade: False

Loader upgrade: False

Save reloaded: False

NDEFAULT active at start

NPROBLEMS active at start

NNONE active at start

NTDINTOFF active at start

NHALLROADOFF active at start

NWON40I141SELECT choice 1

NWON40I144SELECT choice 2

NWON16I212SELECT choice 3




Save Game

A save game is worth ten thousand words, as alongside the Technical Info we can see exactly what state the simulation is in, and our team can use debugging tools to see information the player cannot. Always include a Savegame when reporting an issue where possible. Unfortunately a simple screenshot just does not give the same information.

You can make a save game and include it in your forum thread by:

  • Clicking the Hamburger button to the left of the clock
  • File
  • Save As
  • Make a note of the filename (Or give it one of your choice) and click save.
  • Attach it to your forum thread by pressing Choose File at the bottom of the reply, and navigate to your save game file
    • By default save games are made in C:\Users\Public\Documents\SimSig\Simulations\[Simulation Name]

Loader Log

If you have received an access violation, or a popup error message, further information is recorded in the Loader Log file.

By default Loader Log files are saved automatically to C:\Users\Public\Documents\SimSig and are named SimSig LoaderX.log

You can either attach the Loader Log to your forum thread like a save game above, or copy and paste the relevant section from the file.

Timetable UID

Many timetables and especially ones for areas with an intense service reuse headcodes throughout the day. Including the UID of the service helps our team narrow down the particular service you are having an issue with.

You can find the UID of a train through the Show Timetable window, the UID is shown in highlighted in blue below.


Alternatively you can find the UID in the Timetable list, it is shown next to the headcode.


Are You Running Standalone or Chained

Some issues can be caused by being chained to an adjacent simulation, some issues may only occur when running a simulation standalone, please let us know how you where playing, and list all the chained simulations you are using.

How We Log Issues

We use software called Mantis to log issues, if when investigating your issue one of our team thinks we need to make a change to the Loader, Simulation, or Timetable they will raise the issue on Mantis, and reply to your forum thread with the Mantis number.

You can find more information on Mantis at

Our team of testers who investigate and log issues are all volunteers, while we try and respond to all issues as quickly as we can, sometimes it may take us a little time to get back to you.

Unfortunately if you are not able to provide all of the necessary information our team may not be able to investigate your issue.

Last edited by headshot119 on 04/10/2023 at 14:48