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Can't reverse loco from P3 -> S25 -> P7, thinks its at S25 when it reaches S3.

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Can't reverse loco from P3 -> S25 -> P7, thinks its at S25 when it reaches S3. 03/02/2019 at 09:08 #115286
P*Funk
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I encountered this issue running the excellent weekday 80/81 timetable, specifically Tuesday I think. 0H07-1 needs to reverse out of P3 via S21-26 (rev.) into P7 to join a new departure. However when the previous train leaves with its new traction 0H07-1 thinks that when he reaches S3 at the end of the platform that he's instead at his reversal point. He then calls for permission to proceed and reverses back to the other end of P3 and thinks he's in P7 and is waiting for the train he's supposed to be connecting to in P7.

I've tried getting him to shunt or abandon timetable and shunt into the throat to do this manually or changing the reversal point to any of the other ones available but he keeps stopping at the end of P3 thinking he's at S21-26 (rev) or whichever other reversal in the throat area I choose. Reverting to a previous save hasn't worked and its 8:30 so restarting just to test it is onerous to say the least.

A relatively easy workaround is to just alter his TT to go into the UCS and reemerge shortly after as a new working with a rule set but I'm curious if this is a one off error or something of a bug in the sim. I've completed multiple shunts like this with no issue so far but I think this is the first in this TT run out of P3. I did restart the TT and just created a random working to repeat the actions and it had no issues. Was it just a hiccup? Also I'm curious whats triggering the call to request to proceed. I think I've had it a few other times but can't figure out why it doesn't happen every time.

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Can't reverse loco from P3 -> S25 -> P7, thinks its at S25 when it reaches S3. 04/02/2019 at 04:25 #115324
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Have just had a second guy, OF19 at 10:12 confuse the end of P6 for his reversal point. This time I just abandoned timetable and manually shunted him in the F2 menu then reestablished the TT for him once he was in a position to reverse. Even so I'm curious why this is happening and if there's a way to avoid it.
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Can't reverse loco from P3 -> S25 -> P7, thinks its at S25 when it reaches S3. 04/02/2019 at 06:19 #115325
postal
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As ever, a saved game will make it much easier to try and diagnose the problem than a wordy description that may have missed a salient point.
"The truth about your own life is not always easy to accept, and sometimes hasn't even occurred to you." - Anna Quindlen (Born 08/07/1952) American Journalist
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Can't reverse loco from P3 -> S25 -> P7, thinks its at S25 when it reaches S3. 04/02/2019 at 14:07 #115339
P*Funk
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I did find someone mention this issue in a thread around here from several years ago and their description was identical. I'll pull a save or two that I know reproduces the issue for me.
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Can't reverse loco from P3 -> S25 -> P7, thinks its at S25 when it reaches S3. 04/02/2019 at 14:15 #115340
lazzer
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The usual problem is that the train thinks it is somewhere it isn't. The fix is to edit the TT, go to the location list, select "S21-26 (rev)" and then click "Set current/next location".

If "S21-26 (rev)" is in bold already then I have no idea what the problem could be.

Last edited: 04/02/2019 at 14:15 by lazzer
Reason: None given

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Can't reverse loco from P3 -> S25 -> P7, thinks its at S25 when it reaches S3. 05/02/2019 at 01:12 #115359
P*Funk
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Yes, its clear that the train is confused about where he is, but its how it triggers to this point that's interesting since it happens at the end of the platform. And I've done all that you mention, fiddling with the TT as is. I even changed the reversal point in situ from S21-26 to S28-47. It does the 0Mph jig and then updates the F2 window to say its now at the S28-47 reversal point meaning that without moving it now thinks its somewhere else, the signal still clear at the end of the platform. I did the thing where I had him reverse all the way back to the other end of the platform, reset it to the starting platform as the current/next and let it wait to move out again and it did it again at the end of the platform. I did the current/next for the reversal as well but no dice. The only thing that worked was either sending him out to a non reversal point like the UCS or abandoning TT and reversing past the platform signal and then reestablishing the TT. Interestingly there's no need to call for permission to proceed during this reversal when it works right.

I'll post a save or two when I get a chance.

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Can't reverse loco from P3 -> S25 -> P7, thinks its at S25 when it reaches S3. 11/02/2019 at 20:40 #115633
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Well I figured out what the issue was. For the two trains in question their reversing point for whatever reason had "passing time" checked. Unchecking this caused the issue to go away.
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