Now, I need to learn about track laying and all things related.

[bnsfsubdivision]

All right I know the issue. You see that triangle in the middle of your junction? You can't lay a junction on a splitted track section.

EDIT: Forgot to say it is actually possible, but I guess you should firstly learn how to lay standard junctions.

[artimrj]

Yep just like bnsf sub division said, cant make a switch over a red triangle has to be solid track, no joint where the switch is going.

[5292nate]

I did as you both said. No red triangles. Got about 10 junctions done. Then, it started doing it again. One buffer where the joint should be. It's happening on the solid track.

[hertsbob]

If it happens on an unbroken section then try to either re-lay the track you're trying to join up to so you've got a longer length of track or maybe try putting in the switch from the opposite direction.

It's hard to explain but often I find putting in switches to unconnected track works better than one that forms a loop.

[5292nate]

Is there a jackass smiley? I just learned that you can't make switches/junctions with snap track to terrain on.