[kovarex][0.17.15] Blueprinted trains incorrectly placed on adjacent rail

[uber5001]

If a train wagon or locomotive is placed via blueprint (or maybe by ghost too, I haven't tried it), it can be placed on the wrong rail.

RELATED:

• [kovarex] [0.17.9] Blueprinted trains snapping to wrong rail/not appearing when blueprint is near adjacent rails - note the issue I am reporting here is appearing AFTER the linked issue was resolved.
• [0.17.4] Train blueprint snap to wagon - I'd guess this has the same root cause.
• [0.17.3] Placing train on train ghost does not remove ghost

I'm not really sure why this behavior is happening, but I'd assume it has something to do with the nice snap-to-rail behavior that players have when they place trains normally.


Here's a gif of the blueprint itself being placed wrong:

BugTrainPlacementWagonOnly.gif (1.19 MiB) Viewed 3009 times

Here's a gif of the blueprint being placed correctly, but the actual trains being placed incorrectly.

BugTrainPlacementOneFour.gif (3 MiB) Viewed 3009 times

...and a save for the above gif

Bug - Wagon Blueprinting on Wrong Track.zip

(775.77 KiB) Downloaded 124 times

Here's a picture of the part of my factory that suffers heavily from this issue, since I blueprint it often:

SadFactory.PNG (1.15 MiB) Viewed 3009 times

[uber5001]

Huh, and I just noticed that in the second gif, the ghost fluid wagons get moved up, and the real locomotive gets moved up. And the cargo wagon all the way on the top right just gets cancelled entirely.

[uber5001]

Here's a gif of the second issue (ghost placed correctly, but real train on wrong track) isolated:

BugTrainPlacementIsolated.gif (1.38 MiB) Viewed 3001 times

I'm pretty sure the bot with the wagon makes it there first.


I had to place the top track after the blueprint because otherwise this issue happens again:

BugTrainPlacementIsolatedGhost.gif (892.68 KiB) Viewed 3001 times

Here's it moving a ghost to the wrong track, after placing a train on the wrong track:

BugTrainPlacementIsolatedGhostAndReal.gif (1.55 MiB) Viewed 3001 times

[kovarex]

Thanks for the report, it is to be fixed in the next release of 0.17.17

[kovarex]

Sorry, the bug has to wait one more release (for 0.17.18)