Why Would A Scenario Not Work Because I Changed The Player Loco?

Discussion in 'General Discussion' started by 749006, Nov 23, 2025 at 2:18 PM.

  1. 749006

    749006 Well-Known Member

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    I downloaded a scenario from Rai-Sim.de for the Karawankenbahn
    https://rail-sim.de/forum/filebase/entry/9636-a-d-container-für-villach-wbh/

    The player loco is an OBB 1216 Electric and having played it I wanted to run it with a Diesel.
    Swapping the player loco for a BR266 I get a message saying the Player Train Failed but with no reason.

    Nothing to do with Fuel in the loco - I checked that one.

    Any thoughts?
     
  2. USRailFan

    USRailFan Active Member

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    Could be lots of things:
    -A longer loco pushes the train further backwards, possibly causing signalling issues, which fucks up things for trains behind
    -The AI might route a diesel train over a route an electric loco would be unable to use, causing conflict
    -A slower speed loco messes up timings, which again causes issues for AI services
     
  3. 749006

    749006 Well-Known Member

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    Why would the diesel be unable to use an electric route?
    I understand the other way round would be a problem
    And it is a timetabled scenario so all the other trains have booked paths otherwise the scenario would not work
     
  4. USRailFan

    USRailFan Active Member

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    Where did I write that?
    I wrote: "The AI might route a diesel train over a route an electric loco would be unable to use, causing conflict"

    In other words the exact opposite of what you claimed I wrote.
     
  5. 749006

    749006 Well-Known Member

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    Yes, my bad - I mis read the comment.
    Normally the AI Does not route trains as for them to work they have to be timetabled.
     
  6. drumsart

    drumsart Member

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    I had the same problem, except that I had replaced a “basic” Black Five steam locomotive with a Black Five BMG. After the error message, I was still able to start the scenario using F2 Cancel procedure.
    After starting the train on time, I found myself stuck at a red light, whereas in the original scenario, the light turned green as normal.
    After several attempts, I finally gave up. I never found out why. It's as if the scenario was designed not to be modified!!
    Richard.
     
  7. higgsy333

    higgsy333 Member

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    I tried the MCRE BR266 in the same scenario and on load in I got many failures - see log mate, I F2'd past the error and could drive the loco but I had no PZB at all no indicators nothing and all signals were red and stayed red. I suspect the loco isn't compatable with the routes pzb\signaling.

    I tried the Vr BR218 from steam and the RSSLO DB BR 247 and they worked fine
     
  8. USRailFan

    USRailFan Active Member

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    The 266 may be longer than the 218 or 247, pushing the train further backwards, fouling signals for other trains.
     
  9. 749006

    749006 Well-Known Member

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    I never thought about the 218 or the 247 - might try one of them
    I will look at that - I swapped the train loco and stock but kept the overall length the same.

    Screenshot_Karawankenbahn_46.20637-14.35624_06-29-57.jpg
    Screenshot_Karawankenbahn_46.31186-14.23234_06-45-55.jpg
     

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