Rail tracks not adjusting correctly to terrain and catenary issues

Hello, today I reserved a place in the LOTUS multiplayer world, but the map has now elevation data and that is causing some issues for me,

1. In the first image, you can see that the rails are getting slightly below the ground (sometimes they get completely under), the rail segment length is 50m (but i tried with 25, 50, 100, 300m - and everytime it happened somewhere). Is there an easy fix to this? And what's the ideal rail segment length?
2. As you can see I also have the catenaries attached but there is always one segment where the pantograph refuses to adjust and folds down, is this a know bug or a problem with my design? I had a flat world before where this didn't happen.

And I think I noticed a bug, when you place a traffic sign pole in 3D view, it doesn't have the attachement points for the sign, you have to switch to 2D and back to 3D again.

Hi and thanks for the reply! I really like how you're trying to answer everyones problems.

1. I'll try to place the terrain subgrades in parallel with the rails, but should I somehow select both of the placed rails to create one subgrade or one on each side?
2. While I was making the video for you, I think I discovered the problem I had the catenaries off center, so they almost weren't touching the pantograph of the tram, but I always just looked on the tram from the side and not from the top