[wheybags] [0.16.25] Crash when removing a chain signal

[dmeranda]

I have repeatedly caused the game to crash when removing a chain signal just seconds before a train passes through.

This is single-player under Linux with Factorio 0.6.25, pure vanilla, no mods installed.

Perhaps notable, or not, this was the very first 20 seconds of game play I did after upgrading from 0.6.24 to 0.6.25.

Starting from a save game, I performed the following steps as shown in the attached screenshots.

1. Create a small segment of track which merges two lines.
2. Add a new chain signal just before the merge point
3. Remove the old existing chain signal which is just after where the merge point was; results in immediate crash.

This crash only seems to happen if the above steps were performed fairly quickly (10-15 seconds?), and I believe it may have something to do with a train which passes by the signals in question. If the signal is removed after that it doesn't crash.

[wheybags]

Fixed for 0.16.28.
Thanks for the report!