Editor: Can't select rail tracks after placing them

1. Please describe as detailed as possible what you did and which problem that leads to.

Sometimes (I still can't tell what is the reason) I can't click on rail tracks after I place them. Simply, I place terrain, then rail tracks and after that I can't select those tracks anymore.

2. Please post your logfile and if possible attach your debug logfile, as well, which have been created during the problem occured.

https://pastebin.com/raw/qB5FDL1F

Video:

Thanks a lot! I didn't know that reference lines must be visible for rail tracks.