I created a scenario for the London to Brighton route, following the real live timetable of a service which joins onto another at Redhill before continuing to London Victoria however most of the times when I have tried to play through the scenario the train has derailed when I couple to the other unit, even though I am only moving at a very slow speed (0.5-1.5 mph) and am in the external camera (I have noticed that coupling from inside the cab causes derailment more often than not). On approach to the station where the other unit is sat, there is a red signal and the game doesn't let you TAB past it. So I don't know if that has anything to do with it or if I am doing something wrong in terms of driving.
You need to post the scenario, attach it as a zip. This could happen if the unit you're coupling to is placed over a switch that is not correctly set initially.
I'll check if that's the case but if it still derails I'll attach the scenario folder. Do I need to make a list of requirements.
OK so here is the scenario, it is set in the early 2000s but keeps to a real timetable. Each time I have tried to run through the finished scenario the train derails while coupling at Redhill. If anyone needs a list of requirements then I can provide, there are no reskins/repaints used, everything is from steam store/marketplace.
Can't even access Redhill 2 as the block is occupied. You should remove instruction #4 so the dispatcher knows you're gonna couple up and will let you pass the signal. Otherwise it cannot let you enter an occupied block for a StopAt instruction. I have no idea how you even managed to enter Redhill 2 without illegally passing that signal, after which you cannot guarantee the dispatcher to continue working properly anyway. Meanwhile, here's my mod for the correct camera position and cleaner glass.
That's that sorted. For some reason, the units won't couple. I'll get back to you once I've found out.
I have pinpointed the errors. 1. Remove the StopAt instruction #4 (I've replaced it with a message to contact the dispatcher) 2. Untick the Consist Order checkbox in the Coupling instruction and tick "Options" (default) 3. The invisible collision box of the 421 is too large - that's a bug in the DLC. I have shrinked it a little so the couplers are not inside the collision box which triggers your derailment. I'll upload the fixed scenario and the collision patch - unfortunately everyone will need that 4CIG patch to play the scenario. (It would need to be done for each repaint.) The collision box length must be changed from 19.77 to 19.5 in the engine blueprints. I have done that for the Southern and attached it.
That's what I'm trying to point out, the game engine itself is very well coded, almost all of the time it's bugs in the content not the core.
I have now released a pack that fixes the collision, camera and cab glass on all three Class 421 DLC. Thanks to DeelTeel96 - such good bug reports are very helpful! Get it here: https://www.trainsimcommunity.com/m...ss-421-collision-box-glass-and-cab-camera-fix
Great work guys, thank you all. I will be uploading this scenario onto steam workshop soon so feel free to play it properly.
The scenario is now on Steam Workshop here: https://steamcommunity.com/sharedfiles/filedetails/?id=3380024835 for those who would like to play it properly (without having to worry about constant technical bugs of course!)
