When running rails side by side. Minecarts seem to like to run together because of their hitboxes. However, in a recent furnace array, I built I put Hopper Minecarts next to each other and had a stopping point for them when turned off. I noticed that the south side would stop. But that north side wouldn't. I did some testing and concluded that even on unpowered rails when two minecarts are side by side, they will travel slowly from north to south show in this video. https://youtu.be/5Bs4uVAdEI0
Linked issues
duplicates 1
Comments 1

Thank you for your report!
We're tracking this issue as MCPE-59302, so this ticket is being resolved and linked as a duplicate.
That ticket has already been marked as fixed. The fix will arrive in the next version or is already included in an available version of the game, you can check the Fix Version/s field in that ticket to learn more.
If you haven't already, you might like to make use of the search feature to see if the issue has already been reported.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – ✍️ Feedback and Suggestions – 📖 Game Wiki