I'm currently in Factorio 1.1.46 using 1.0.2 as the current version of the mod and the bots are now giving me thing problem with pathing over and around railroad track:

https://www.youtube.com/watch?v=vkygxOTcpSQ

They are not able to properly path over it for some odd reason and this was never a problem in previous versions of the mod that I have used and am thinking they must have recently changed something with the track that causes them to do this now.

+1 up

Just updated the mod today and having the same issue regarding rails. Mod worked perfectly before the last update

I have the same issue with belt their legit can go over belt it annoying but nice to them go around when their can.. but it take age to do and over time their is ''Belt Blocking" Meaning that their totally stop going around and just stop pathing totally and i have to remove them or put the stuff ''belt or else item'' for them to come back haha stilll sweet for clearing forest in game :D

If i thinks about it this updated is changing the drone pathing on water probally cause the issue with it ? and the drone going on water wasen't a huge issue their have flotation device ;)

Oh god thank you for the bug report, it looks hilarious :D will try to fix

After some digging, it seems to be a bug with how Factorio handles the collision layers. I posted a bug report on the forums: https://forums.factorio.com/viewtopic.php?f=7&t=100847

Fixed in 1.0.3