Minecrafts don't pass along curves , if it's not a south-east curve. They bounce back as if there were a barrier there.
Environment
OS: Windows 10 - 64 Bit
JRE: Java Version with bundled Minecraft Launcher
Minecraft: Developer Snapshot 19w08b
MC-144943
Minecarts bounce back at curves
Resolved
Duplicate
0
The same for me. In addition, the minecarts have disappeared in the Nether at least near the portal. Maybe a connection with the bug https://bugs.mojang.com/browse/MC-143404 which occurred at the same time at this portal with a horse.