Game crashes when going into underground mode

[Rollmaterial]

The game crashes when I go into underground mode. Sliced underground mode works fine. Additionnally, the tunnel internals are shown straight instead of diagonally at some places.

.sve: https://drive.google.com/file/d/0ByLSSg3gXTz-aHR1OG93dXBWTGs/view?usp=sharing

Edit: The sliced underground mode crashes when going beneath level 5.

[jamespetts]

I have been doing some work on tunnel related features this afternoon. Can you try again with the latest commit from Github and the latest pakset (compiled with the latest makeobj) to see whether it still occurs?

[Rollmaterial]

I'm playing with commits d726642 of the game, 38e1b12 of makeobj and 1e91dd8 of the pak. Is that late enough?

Edit: I can confirm it occurs with all latest commits.

[jamespetts]

Thank you for that - I have reproduced the problem, and, I think, fixed it: it was an issue with power line tunnels.