Doesn't really count as a bug but was unsure to post it in the general discussion.

Double tracking seems to be a bit odd because its either the track is too close causing the two passing trains to derail with the autosnap and or is spaced out way too far almost another track width apart. I know I can turn collisions off and or change the track, but just wanted to bring that to attention to see if the autosnap could be tweaked for easier double tracking in the future.

Here is a example picture of the predicament:
https://imgur.com/a/eXvKx