I don’t know if the problem is the fact that the tunnel is in curve or that it’s too long, but in the previous version building these types of double tunnels was easy enough, and I rarely had this problem. Now the collision problem is always present, except for short tunnels.

Please, Devs, take a look.

Its can get rather expensive trying to work around the bugs in game.

Even if the tracks are built to a certain point (just before they would start a tunnel) completely aligned, and end both at a staight wall, tunneling of the first line will lead to a “jump” (usually just 1-2 ticks) that the other line can’t align to.

This is quite sad whan it comes to spend hard earned money on high speed tracks (to earn even more).

I can’t defnetly confirm that this is due to the last upgrade, but at least i had no issues like this befor this upgrad on smaller maps.

I’m having exactly the same issue and for this bug I had to build, take down, build, and take down again a super long bridge I was trying to build over a lake. Cost me over 50M to do this and I finally succumbed to building around the lake, making the track speed limits lower.

I hope this gets fixed soon, as it’s preventing me from building new and fast lines for more modern trains.

whole length of the section

end point of the tunnel