Still flummoxed by pathfinding

[Bedwyr]

I decided to try the game again after the update and I remain pretty disappointed. I created a test loop (screenshot) and no matter where I placed a waypoint or multiple waypoints a train that is supposed to remain on the mainline turns off onto the loop spur. I'm not worried about fancy interchanges TTDX style yet but want to observe simple track branching like this. What I naturally expect to happen doesn't happen. Am I missing something?

[Zakos]

That is perplexing, but not unheard of. I've found that most other spurs work just fine, so just make sure that the vehicles' destinations (not just the waypoints) are set correctly.